Scenario:
- show the files of a commit, escape out of it again
- start an interactive rebase of a stack of branches, with the rebase.updateRefs
git config set to true
- select one of the update-ref todos
- trigger a refresh (either manually or by bringing lazygit's terminal window to
the front)
This results in an error message "fatal: ambiguous argument '': unknown revision
or path not in the working tree."
Fix this by putting another band-aid on the check for the commit files refresh.
This is the easiest way to fix the problem, but I don't think it's the best one.
We shouldn't be refreshing the commit files context at all if it isn't visible,
because it's pointless; there's no way to switch to it again except by calling
viewFiles again with a specific ref. But I'm too lazy too figure out how to do
that right now.