On Jan 1, my usual build of kdenlive from git master finished fine but yielded a segfault in kdenlive itself (not an underlying library) when i tried to run it.
I found by building earlier snapshots sequentially that commit 964b9ef8ce36e9c73bd32ed790b3e1dd59656d2c was the first bad commit, builds of snapshots
up to this commit ran fine.

Hello,
Thanks for reporting this issue. Reporting to bug tracker (2nd option: mailing list) would be a better option
Do you have a backtrace for the fail on AArch64?

This is long fixed, at any rate I don't have all the debugging tools installed to get those