Please describe the problem:
When you middle click a folder and make a tab.. if the folder has enough files where they cant fit in the window, the scroll bar doesn't show up.
So you have a cut off view of the directory with no scroll bar.

Steps to reproduce:
1. Have several (sub)/directories with more files than can fit in the window
2. middle click a folder to create a tab
3. go to that tab and middle click again and another tab should pop up that wont have a scroll bar even if there's too many files for it to see in the window.


Actual results:
the bug happens however sometimes it doesnt even require making an extra tab.. it's just middle click in a newly made window and the tab will appear with no scroll bar.

Expected results:
same thing

Does this happen every time?
no... but very often and most of the time

Other information:
Bottom line is.. it needs more testing.. I love the feature and it's very innovative; Keep up the good work.