Flag that we don't support virtual workspaces (#16264)
Flag that we don't support virtual workspaces (#16264)

Fixes #16177
DonJayamanne/pythonVSCode,DonJayamanne/pythonVSCode,DonJayamanne/pythonVSCode,DonJayamanne/pythonVSCode,DonJayamanne/pythonVSCode