Log of error when trying to pull from swcarpentry-ja/i18n

i18n_remote_error.log

joelnitta@Joels-iMac repos % git clone https://github.com/joelnitta/i18n
Cloning into 'i18n'...
remote: Enumerating objects: 1672, done.
remote: Total 1672 (delta 0), reused 0 (delta 0), pack-reused 1672
Receiving objects: 100% (1672/1672), 2.73 MiB | 2.43 MiB/s, done.
Resolving deltas: 100% (1167/1167), done.
joelnitta@Joels-iMac repos % cd i18n
joelnitta@Joels-iMac i18n % git submodule init
Submodule 'git-novice' (https://github.com/swcarpentry-i18n/git-novice.git) registered for path 'git-novice'
Submodule 'po4gitbook' (https://github.com/swcarpentry-i18n/po4gitbook.git) registered for path 'po4gitbook'
Submodule 'python-novice-gapminder' (https://github.com/swcarpentry/python-novice-gapminder.git) registered for path 'python-novice-gapminder'
Submodule 'python-novice-inflammation' (https://github.com/swcarpentry/python-novice-inflammation.git) registered for path 'python-novice-inflammation'
Submodule 'r-novice-gapminder' (https://github.com/swcarpentry/r-novice-gapminder.git) registered for path 'r-novice-gapminder'
Submodule 'r-novice-inflammation' (https://github.com/swcarpentry/r-novice-inflammation.git) registered for path 'r-novice-inflammation'
Submodule 'shell-novice' (https://github.com/swcarpentry-i18n/shell-novice.git) registered for path 'shell-novice'
Submodule 'sql-novice-survey' (https://github.com/swcarpentry/sql-novice-survey.git) registered for path 'sql-novice-survey'
joelnitta@Joels-iMac i18n % git submodule update
Cloning into '/Users/joelnitta/repos/i18n/git-novice'...
Cloning into '/Users/joelnitta/repos/i18n/po4gitbook'...
Cloning into '/Users/joelnitta/repos/i18n/python-novice-gapminder'...
Cloning into '/Users/joelnitta/repos/i18n/python-novice-inflammation'...
Cloning into '/Users/joelnitta/repos/i18n/r-novice-gapminder'...
Cloning into '/Users/joelnitta/repos/i18n/r-novice-inflammation'...
Cloning into '/Users/joelnitta/repos/i18n/shell-novice'...
Cloning into '/Users/joelnitta/repos/i18n/sql-novice-survey'...
Submodule path 'git-novice': checked out '942c8cbf8463bd0f83312d3a2629ecf4f39d6d97'
Submodule path 'po4gitbook': checked out 'fae13ae378a21d5201cb48520225ffb2e791e387'
Submodule path 'python-novice-gapminder': checked out '49f8035d638c8760da38da46c59ed0da7ff555e1'
Submodule path 'python-novice-inflammation': checked out '277880146227c0aa91a12ded35819b8e8eaaaa27'
Submodule path 'r-novice-gapminder': checked out '755bbf2fb332237cb372d043d3bd0f4c337da175'
Submodule path 'r-novice-inflammation': checked out 'c5840c27557fc116c33dd251da9b9bf6a242f35e'
Submodule path 'shell-novice': checked out '653d9d70f9da3e434393fb63b4c3ce2537912c5c'
Submodule path 'sql-novice-survey': checked out 'ec5dcaaaae5cce46495ede3b63b0004c2a226afb'
joelnitta@Joels-iMac i18n % git remote -v
origin	https://github.com/joelnitta/i18n (fetch)
origin	https://github.com/joelnitta/i18n (push)
joelnitta@Joels-iMac i18n % git remote add swc-ja git@github.com:swcarpentry-ja/i18n.git
joelnitta@Joels-iMac i18n % git remote set-url origin git@github.com:joelnitta/i18n
joelnitta@Joels-iMac i18n % git remote -v
origin	git@github.com:joelnitta/i18n (fetch)
origin	git@github.com:joelnitta/i18n (push)
swc-ja	git@github.com:swcarpentry-ja/i18n.git (fetch)
swc-ja	git@github.com:swcarpentry-ja/i18n.git (push)
joelnitta@Joels-iMac i18n % git pull swc-ja ja
Warning: Permanently added the RSA host key for IP address '52.192.72.89' to the list of known hosts.
remote: Enumerating objects: 117, done.
remote: Counting objects: 100% (117/117), done.
remote: Total 191 (delta 117), reused 117 (delta 117), pack-reused 74
Receiving objects: 100% (191/191), 324.55 KiB | 655.00 KiB/s, done.
Resolving deltas: 100% (137/137), completed with 18 local objects.
From github.com:swcarpentry-ja/i18n
 * branch            ja         -> FETCH_HEAD
 * [new branch]      ja         -> swc-ja/ja
Fetching submodule r-novice-gapminder
fatal: remote error: upload-pack: not our ref 2312f70a46fd80d0eab8561e4a5078d60c08d1ad
fatal: the remote end hung up unexpectedly