I understand you do not support this and your reasons.
Too bad you made the decision of storing lowercase-only nicknames in 1.7.5, having decided to create case-sensitive UUID generation in 1.7.7, making the upgrade process not seamless... One could still feel some shifts in design hiding behind the 'do not care' stand. ;o)
I experienced the same bug.
I attached the cras hreport and the part of the log file indicating the last event, maybe related (or not) to the crash.
THe fall from the high place was made by jumping into a block of water from a high place, which normally slows you down and avoids getting killed... I do no know if I died resulting from a bug or if my fall triggered it, but that death was unexpected/not normal, as tested multiple times.