Git allows you to use / slash in your branch name. It’s useful for
grouping branches. However, you need to be careful that once a slashy
branch name is created, you can’t use its name as the "base" for another
new nested slash name! For example:
# this is fine
git branch foo/bar
git branch foo/bar2
# but this fails
git branch foo/bar/cool
fatal: cannot lock ref 'refs/heads/foo/bar/cool': 'refs/heads/foo/bar' exists; cannot create 'refs/heads/foo/bar/cool'
# So to use two level of slashes, you must first start a branch with two slashes!
git branch foo2/bar/cool
git branch foo2/bar/cool2
git branch foo2/bar2/cool
git branch foo2/bar2/cool2
Here is a more concrete example. Let’s say you worked on an issue-123
branch, and now you are done but want to rename under a subcategory
closed/issue-123. If you were to create a bsranch closed first, then
the rename will fail! You have to first ensure closed branch does not
exist. In fact reate a closed/zkeepme first, then you can always move
your completed branch into that sub category!
