Crash on load of 1.3 score with slur attached to rest

Ubuntu Studio, 14.04, GIT commit: aa7957b

So far I can't reproduce this is in a score creased from scratch in 1.3, but it fails with this particular score from 1.3. Load, and it crashes. I assume the issue is the slur used at the beginning of the last system to simulate a one-sided tie - the slur actually *begins* on the note and ends on a rest in the next measure, but was manually edited (I guess; I don't think I actually worked that hard).