Unstaged Files is stale when switching from a commit back to Uncommitted Changes

[jensenr30]

Feel free to assign to me.

Steps to reproduce:

• open Gittyup on a clean branch (no uncommitted changes)
• click on some commit
• click on Uncommitted Changes

The Unstaged Files list should now be clear, but it has stale data from the last commit that was selected. See attached video.

Pressing Refresh doesn't seem to help.

gittyup-stale-uncommitted-changes.webm

[jensenr30]

This is a duplicate of #567, but I would like to keep it open because it provides more information and a demonstration of the bug.