"Ctrl + Del" delete slurs in the next measure in linked staves (and crash on undo)

Nightly, July 31 "6d225b" / Windows 7

I had noticed this bug there is a while, but as there were other more important priorities these last days with slurs and linked staves, I had almost forgotten!

So:

1) New score for Acoutic Guitar: standard staff + linked tab staff, 4/4, x measures.
2) Enter some notes and slurs in four measures

3) Select the second measure
4) Press Ctlr + Del to remove it.

Result: the measure is deleted, but also the slurs of the former measure 3 (the new measure 2). And only this measure.

The single "Del" key works normally, without affecting the next measure.

And the mscz. file to try: Ctlr Del.mscz