Makes simply-workspaces extension misbehave

[isamert]

First of all, great extension, I like it very much and using it without any significant problem! But here is one little problem that annoys me:

I use simply-workspaces as a workspace indicator. It normally shows the workspace number if it has windows open, like this:

But if I use quake-mode, it thinks every workspace has a window in it and shows all of them:

Is there way to prevent this? I'm already using "Hide from Overview" but that does not help.