Collapsing git commits & Stashing

gistfile1.txt

___ COLLAPSING COMMITS ___
1. git reset HEAD~  or   git reset hEAD@{3}
2. git push -f origin feature/url-ingestion
** Don't do this often and only with permission - it rewrites github's history.

___ STASHING ___
git stash show -p stash@{0}   --> This one will show you the differences in code from one stash to the other.  The # indicates which.
git stash apply stash@{0}     --> This is bring back the stash you choose according to the number you put in the curly braces.
git reset HEAD~       --> This will undo your last commit (only do this if you haven't git pushed it yet)