build-pipeline: Execute custom commands in srcdir
@HER0
Submitted by Andrew Conrad Link to original bug (#782414)
Description
Created attachment 351500 git patch file
This fixes a bug in the flatpak plugin where build-commands and post-install would fail because the PWD was the builddir.
Patch 351500, "git patch file":
0001-build-pipeline-Execute-custom-commands-in-srcdir.patch