Flatpak build doesn't show backtrace on SIGSEGV
Steps to reproduce:
flatpak install org.kde.kdenlive
flatpak run org.kde.kdenlive
killall -s SIGSEGV kdenlive
(Tested with Kdenlive 22.08.1 on Ubuntu 22.04)
No crash handler is triggered and nothing is printed in the terminal (not even "Segmentation Fault").
Need to figure out a way to get a backtrace, ideally copied to a file.
Edited by Eric Jiang