* Insert a new midiclip into a track
* Double click or press Z to open up the piano roll and move to show the midi toolbar
* Delete the midiclip
* Double click or press Z to shrink the track again
* Scroll using the mousewheel or move using the arrowkeys
* The pianoroll and miditoolbar now appears in the shrinked mode without a midiclip on the track and reappears whenever you use the mousewheel or the arrowkeys from now on.
A simple workaround is to switch to the settings or project page, but it´s still annoying when it happens...
Now, is this a bug or is it just me?
