crash in gitg_lanes_collapse_lane
this happens when clicking on the pw/ci-print-failure-name-fix ref in a repo cloned from git@github.com:gitster/git.git (note that the ref may be force-pushed at any time).
bt
Program terminated with signal SIGSEGV, Segmentation fault. #0 gitg_lanes_collapse_lane (index=16, container=0x7f014b4e3520 [GitgLanesLaneContainer], self=0x55c1eb21d340 [GitgLanes]) at libgitg/libgitg-1.0.so.0.0.0.p/gitg-lanes.c:959 #1 gitg_lanes_collapse_lanes (self=) at libgitg/libgitg-1.0.so.0.0.0.p/gitg-lanes.c:1060 #2 gitg_lanes_next (self=, next=next@entry=0x7f01481de520 [GitgCommit], lanes=lanes@entry=0x7f016adfbb00, nextpos=nextpos@entry=0x7f016adfbaec, save_miss=save_miss@entry=0) at libgitg/libgitg-1.0.so.0.0.0.p/gitg-lanes.c:396 #3 0x00007f01a470ba9e in __lambda34_ (_data4_=0x55c1fdd164c0) at libgitg/libgitg-1.0.so.0.0.0.p/gitg-commit-model.c:1713 #4 ___lambda34__gthread_func (self=0x55c1fdd164c0) at libgitg/libgitg-1.0.so.0.0.0.p/gitg-commit-model.c:1941 #5 0x00007f01a455d0cd in g_thread_proxy (data=0x55c1fc6e4e10) at ../../../glib/gthread.c:831 #6 0x00007f01a35363ec in start_thread (arg=) at ./nptl/pthread_create.c:444 #7 0x00007f01a35b6a1c in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81`