$ git clone -n https://src.fedoraproject.org/rpms/gamescope.git /var/lib/mock/f38-build-side-42-init-devel-825104-28361/root/chroot_tmpdir/scmroot/gamescope
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-825104-28361/root/chroot_tmpdir/scmroot/gamescope'...
$ git fetch origin 7e82bda80a151791bb59726a40578b54ab56d098:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/gamescope
 * [new ref]         7e82bda80a151791bb59726a40578b54ab56d098 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7e82bda Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild