[BUG] Commit detail panel stays open and empty (with no close icon) after the selected commit changes in the graph

[baxyz]

1. Description

When a commit's detail panel is open and the underlying Git history changes in a way that invalidates the currently selected commit (e.g. it gets merged, rebased/moved, or renamed via amend), the panel does not close or refresh. Instead, it stays open showing a completely empty panel, and the close icon also disappears, making it impossible to close the panel manually.

This happens whether the user stays on the Git Graph+ page or navigates away and back.

2. Steps to Reproduce

1. Open Git Graph+
2. Click on a commit in the graph to open its detail panel
3. Without closing the panel, perform a Git operation that changes the commit's identity/position in the history (e.g. merge the branch containing that commit, rebase it, or amend it)
4. Refresh the graph (or navigate to another view and back to Git Graph+)

3. Expected Behavior

When the previously selected commit no longer exists / is no longer resolvable in the updated graph, the detail panel should either close automatically or show a clear "commit not found" state, but in both cases the close icon should remain available, so the user can dismiss it.

4. Actual Behavior

• The commit is correctly deselected in the graph itself.
• The detail panel remains open but renders completely empty.
• The close (×) icon is also missing from the panel.
• As a result, there is no way to close the panel — it stays stuck open indefinitely, even after switching pages and coming back.

5. Screenshots or Logs

Sample of empty panel after a disappeared commit:

6. Environment

• OS: Ubuntu 26.04 + Dev-Container
• VS Code version: 1.130.0
• Git Graph+ version: 0.7.3
• Git version: 2.55.0
• Node.js version: 26.5.0

7. Additional Context

• Reproduced by merging/rebasing/renaming (amend) a commit whose detail panel was open.
• The only current workaround is to select another existing commit, then close the panel.