$ git clone -n https://src.fedoraproject.org/rpms/Pencil2D.git /var/lib/mock/f40-build-796753-140845/root/chroot_tmpdir/scmroot/Pencil2D
Cloning into '/var/lib/mock/f40-build-796753-140845/root/chroot_tmpdir/scmroot/Pencil2D'...
$ git fetch origin 7c3c342b2df11988684c8c89cb5047570d4e1a3f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/Pencil2D
 * [new ref]         7c3c342b2df11988684c8c89cb5047570d4e1a3f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7c3c342 Add developer ID to AppData XML; fix FTBFS with appstream 1.0.2