When searching for shapes with text 'sub' this destabilizes the shapes panel

[cveld]

Strangely when I was looking for shapes with the text 'sub', suddenly I could not expand any of the shape groups show in the shape panel anymore.

To reproduce:

1. Search for the text 'sub'
2. Try to expand a shape group in the shape panel
3. Verify that the shape group does not yield any shapes

Expected behavior: Just show the available shapes inside the shape group.

Vscode version: 1.63.0 Extension version: 1.6.4