Focusing hides folders from other projects in multi-root workspace

[Matt Robinson]

I have a multi-root workspace in vscode and when i try and focus to a package folder in projectA the .github folder vanishes on projectB

i.e.
Before

projectA
- packages/
- - packageA
- - packageB

projectB
- .github/
- packageA/
- packageB/

After

projectA
- packages/
- - packageA

projectB
- packageA/
- packageB/