magit/magit — pull request #1558 by kyleam (2014-10-21 20:56:18+00:00)
Title: magit-revision-refresh-buffer: Avoid file refname

When both a file and revision have the same name, 'git show' fails:

fatal: ambiguous argument 'foo': both revision and filename
Use '--' to separate paths from revisions, like this:
'git [...] -- [...]'

As a result, `magit-revision-refresh-buffer' showed an empty buffer.

Use '--' to specify that this argument is a revision.