Biblatex-Bug-Mergedate

Biblatex-Bug-Mergedate.bib

@article{alberici_2016_why,
  author = {Alberici, Emma},
  date = {2016-11-20T21:02:28+11:00},
  title = {Why Did 61 Million {{Americans}} Vote for {{Trump}}?},
  urldate = {2016-11-24},
  journaltitle = {ABC News},
  langid = {australian},
  timestamp = {2016-11-24T10:04:39Z},
  url = {http://www.abc.net.au/news/2016-11-20/us-election-why-did-61-million-americans-vote-for-trump/8040648},
  rights = {http://www.abc.net.au/conditions.htm\#UseOfContent},
  entrysubtype = {newspaper}
}

@book{aquinas_1273_compendium,
  author = {Aquinas, Thomas},
  date = {1273?~},
  title = {Compendium of Theology},
  timestamp = {2016-10-29T09:37:00Z}
}

@article{barker_2016_swiss,
  author = {Barker, Anne},
  title = {Swiss voters say no to guaranteed free money},
  date = {2016-06-06T18:20:00+10:00},
  urldate = {2016-07-22},
  journaltitle = {ABC News},
  langid = {australian},
  timestamp = {2016-10-24T10:27:38Z},
  abstract = {Voters in Switzerland overwhelmingly reject a proposal to introduce a guaranteed monthly income for all citizens.},
  url = {http://www.abc.net.au/news/2016-06-06/swiss-voters-reject-basic-income-proposal/7481672},
  rights = {http://www.abc.net.au/conditions.htm\#UseOfContent},
  entrysubtype = {newspaper}
}

@article{barker_2016_turkey,
  author = {Barker, Anne},
  date = {2016-07-18T20:26:06+10:00},
  title = {Turkey Divided between Secular and {{Islamist}} Rule},
  urldate = {2016-07-24},
  journaltitle = {ABC News},
  langid = {australian},
  timestamp = {2016-10-26T16:24:51Z},
  abstract = {Religious fundamentalism is a powerful force in Turkey where the military has a long history of intervening in politics to ensure the nation remains secular.},
  url = {http://www.abc.net.au/news/2016-07-18/turkey-coup-attempt-shows-division-over-wish-for-islamist-rule/7639292},
  rights = {http://www.abc.net.au/conditions.htm\#UseOfContent},
  entrysubtype = {newspaper}
}

@book{da_vinci_1487_codex,
  author = {da Vinci, Leonardo},
  date = {1487/1490},
  title = {Codex Trivulzianus},
  options = {useprefix=true},
  timestamp = {2016-10-29T09:01:20Z}
}

@article{greenwald_2016_three,
  author = {Greenwald, Glenn},
  date = {2016-11-05T01:19:00},
  title = {Three New Scandals Show How Pervasive and Dangerous Mass Surveillance Is in the West, Vindicating Snowden},
  urldate = {2016-11-25},
  journaltitle = {The Intercept},
  timestamp = {2016-11-25T05:29:50Z},
  url = {https://theintercept.com/2016/11/04/three-new-scandals-show-how-pervasive-and-dangerous-mass-surveillance-is-in-the-west-vindicating-snowden/},
  entrysubtype = {newspaper}
}


@article{kennett_2008_true,
  author = {Kennett, Jeanette},
  date = {2008-01},
  title = {True and Proper Selves: Velleman on Love},
  pages = {213--227},
  urldate = {2016-08-02},
  shortjournal = {Ethics},
  journaltitle = {Ethics},
  number = {2},
  timestamp = {2016-10-28T02:30:31Z},
  shorttitle = {True and {{Proper Selves}}},
  doi = {10.1086/523747},
  url = {http://www.journals.uchicago.edu/doi/abs/10.1086/523747},
  issn = {0014-1704},
  volume = {118}
}

@article{mendelsohn_2010_enough,
  author = {Mendelsohn, Daniel},
  date = {2010-01-25},
  title = {But Enough about Me},
  urldate = {2016-08-03},
  journaltitle = {The New Yorker},
  timestamp = {2016-10-28T02:30:36Z},
  abstract = {What does the popularity of memoirs tell us about ourselves?},
  url = {http://www.newyorker.com/magazine/2010/01/25/but-enough-about-me-2},
  entrysubtype = {newspaper}
}

@book{plato_2004_republic,
  author = {{Plato}},
  date = {-0379~},
  title = {Republic},
  translator = {Reeve, C. D. C.},
  publisher = {{Hackett Publishing Company, Inc.}},
  timestamp = {2016-10-17T04:34:52Z},
  pagetotal = {392},
  isbn = {0-87220-737-4},
  edition = {3rd edition},
  location = {{Indianapolis}}
}

@article{russell_1914_nature,
  author = {Russell, Bertrand},
  date = {1914},
  title = {On the Nature of Acquaintance},
  pages = {1--16,161,435--453},
  journaltitle = {Monist},
  timestamp = {2016-10-28T02:30:44Z},
  volume = {24}
}

@book{singer_1993_how,
  author = {Singer, Peter},
  date = {1993},
  title = {How Are We to Live?: Ethics in an Age of Self-Interest},
  addendum = {This Mandarin Edition reprinted by Random House Australia, 1997},
  publisher = {{Text publishing company}},
  langid = {english},
  timestamp = {2016-11-28T00:47:51Z},
  pagetotal = {262},
  shorttitle = {How {{Are We}} to {{Live}}?},
  isbn = {1-86330-431-2},
  location = {{Melbourne, Australia}}
}

@book{simpson_cool_book_0078,
  author = {Simpson, Lisa},
  date = {2016-07-18T10:26:06Z},
  title = {Cool Book 0078},
  timestamp = {2016-10-29T14:14:06Z}
}

@book{sep_2016_stanford,
  author = {{SEP}},
  date = {2016-23},
  title = {The Stanford Encyclopedia of Philosophy},
  urldate = {2016-06-20},
  editor = {Zalta, Edward N.},
  timestamp = {2016-11-02T19:02:26Z},
  url = {http://plato.stanford.edu/archives/fall2016/}
}

@article{willacy_2016_fukushima,
  author = {Willacy, Mark},
  date = {2016-11-22T13:56:36+11:00},
  title = {Fukushima Nuclear Plant Remains a Gap in {{Japan}}'s Disaster Defences},
  urldate = {2016-11-24},
  journaltitle = {ABC News},
  langid = {australian},
  timestamp = {2016-11-24T09:50:50Z},
  url = {http://www.abc.net.au/news/2016-11-22/fukushima-nuclear-plant-gap-in-japan's-wall-of-disaster-defences/8045894},
  rights = {http://www.abc.net.au/conditions.htm\#UseOfContent},
  entrysubtype = {newspaper}
}

@book{oed_online_2016_oed,
  author = {{OED Online}},
  date = {2016-12},
  title = {{{OED}} Online},
  urldate = {2016-11-01},
  publisher = {{Oxford University Press}},
  langid = {british},
  timestamp = {2016-12-31T08:40:29Z},
  url = {http://www.oed.com.rp.nla.gov.au/view/Entry/18890},
  location = {{Oxford}}
}

Biblatex-Bug-Mergedate.tex

\documentclass{article}
\usepackage{a4wide}

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Demo 
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\usepackage[%
  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  % Dates and Datetimes
  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  alldates=ymd, %long, ymd, edtf, year
  labeldate=year,
  mergedate=basic, %false, minimum, basic, compact or true (default), maximum. Pref = basic.
  alldatesusetime=true, % print time components in non-compact date ranges
  labeldateusetime=false,
  alltimes=24h,% prints 24 hour format times (default); 12h; 24hcomp
  seconds=true,% print seconds
  timezones=true,% print timezones
  datezeros=true,%
  dateera=secular,% prints BCE/CE controlled by dateerauto, datezeros
  dateeraauto=501,% Sets the max year ceiling for automatic printing of era
  abbreviate=true, % prints full localisation strings
  dateabbrev=false, % prints full date localisation strings
  dateuncertain=true,% prints date uncertain string '?'
  datecirca=true,   % prints date approximate/circa string 'ca.'
  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  % Style
  %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
  style=authoryear,
  sorting=none,
  dashed=false,
  url=false,
  %refsection=section,
]{biblatex}

\addbibresource{Biblatex-Bug-Mergedate.bib}

% Seperation between time and timezone.
\DefineBibliographyExtras{english}{
  \renewcommand*{\bibtimezonesep}{\space}
}


%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% Support 
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

%
\DeclareSourcemap{
  \maps[datatype=bibtex]{
    \map[overwrite]{
      % Set verba to date so 
      % the raw input date can be accessed with \citefield{}
      \step[fieldsource=date]
      \step[fieldset=verba, origfieldval]
    }
  }
}

% Seperation between bibliographic entries
\setlength{\bibitemsep}{0.5em} 

% Table cells top and bottom padding
\renewcommand{\arraystretch}{1.5}

% Tilde output
\newcommand{\mytilde}{\raise.17ex\hbox{$\scriptstyle\mathtt{\sim}$}}

\begin{document}

\section{Precision finer than a year}


\begin{tabular}{|p{5cm}|l|p{5cm}|}
\hline  
\textbf{Description} & \textbf{Input date} & \textbf{Output citation} \\  
\hline 
\noalign{\bigskip}

\hline
\multicolumn{3}{|l|}{\textbf{Year level (precision not finer than a year)}}\\
\hline
Year precision. Journal article. & \citefield{russell_1914_nature}{verba} & \autocite{russell_1914_nature} \\
\hline
\noalign{\bigskip}

\hline 
\multicolumn{3}{|l|}{\textbf{Time level}}\\
\hline  
Local time zone & \citefield{alberici_2016_why}{verba}  & \autocite{alberici_2016_why} \\  
Local time zone & \citefield{barker_2016_swiss}{verba}  & \autocite[see][1]{barker_2016_swiss} \\  
Local time zone & \citefield{barker_2016_turkey}{verba}  & \autocite{barker_2016_turkey} \\  
Local time zone & \citefield{willacy_2016_fukushima}{verba}  & \autocite{willacy_2016_fukushima} \\ 
\hline
Unpsecified time zone & \citefield{greenwald_2016_three}{verba}  & \autocite{greenwald_2016_three} \\   
\hline
Zulu/UTC timezone & \citefield{simpson_cool_book_0078}{verba} & \autocite{simpson_cool_book_0078} \\
\hline 
\noalign{\bigskip}

\hline 
\multicolumn{3}{|l|}{\textbf{Month and day level }}\\
\hline  
Month precision. Journal article. & \citefield{kennett_2008_true}{verba} & \autocite{kennett_2008_true} \\
\hline
Day precision.  Online newspaper article. & \citefield{mendelsohn_2010_enough}{verba} & \autocite[68]{mendelsohn_2010_enough}.\\
\hline 
\noalign{\bigskip}   

\hline 
\multicolumn{3}{|l|}{\textbf{Season level}}\\  
\hline  
Season precision. Encyclopedia article. & \citefield{sep_2016_stanford}{verba} & \autocite{sep_2016_stanford} \\
\hline
\noalign{\bigskip}  

\hline 
\multicolumn{3}{|l|}{\textbf{Approximate, Uncertain, Eras}}\\
\hline    
Approximate and Uncertain & 1273?\mytilde & \autocite{aquinas_1273_compendium} \\
\hline 
Before the year zero (``BCE") & -0379\mytilde  & \autocite{plato_2004_republic} \\ 
\hline 
\end{tabular} 

\defbibnote{mybibnote}{Reference entries are sorted in citation order.}
\printbibliography[prenote=mybibnote]

\end{document}