SWS unindent selected tracks - BUG with nested tracks

[highvoltaged]

This one is very hard to describe in words, so i made a screenshot.
http://prntscr.com/qj9mze

In this scenario, if you use action "SWS unindent selected track(s)" on track #3, it gets correctly unindented, but everything under track #4 gets indented one step.

Thanks
Matt

[cfillion]

Fixing for the next version, thanks! You can try it beforehand using the builds listed here: #1278 (comment).