Dual mode new tab resize bug

[darwin]

I was able to reproduce the wide-sidebar bug. Thanks @JeremyAgost for repro case. I’m working on a fix now.

Also I fixed one related issue with dual mode under Mavericks:

Mavericks, Scroll bars vanished, dual mode right window problems

Hello, In dual mode the scroll bar for the right handed windows is no longer there. One can’t scroll using the scroll bar. In addition I also experience strange columns width effects on the right handed window. The first column (name) is very long and the other columns (like date, size, version) can’t be reached. The scroll bar at the bottom does’t help either. Mavericks, TF 1.5.2 Regards Karl