Somewhat serious issue with Tabs Bar...

I found this issue while working with the Tabs Bar, but I suspect it may appear in other areas too. It will cause an issue with Balsamiq that will require you to restart.

1. Add a 'Tabs Bar' to your mockup



2. Change the active tab to One





3. Now try to change the active tab back to none. Notice that there is no way to set it back to 'None' it seems to not be possible:



4. Now it CTRL-Z a few times to undo your last actions.



Huh? There is now no content in the tabs.

Worse off is that now Balsamiq appears to be broke and not functioning as expected. You cannot use the quick add and toolbox filters. Some things do still work, but things are definitely broken.

Also notice that at some point the property panel does not appear correctly. Thiis happens if you redo. Its missing the borders and background. Kinda funky :)