$ git clone -n https://src.fedoraproject.org/rpms/gamescope.git /var/lib/mock/f40-build-2312510-57590/root/chroot_tmpdir/scmroot/gamescope
Cloning into '/var/lib/mock/f40-build-2312510-57590/root/chroot_tmpdir/scmroot/gamescope'...
$ git fetch origin 38c0b4c9ee79102227a1be7e05aa12d269686155:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gamescope
 * [new ref]         38c0b4c9ee79102227a1be7e05aa12d269686155 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 38c0b4c Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild