$ git clone -n https://src.fedoraproject.org/rpms/grhino.git /var/lib/mock/f39-build-1466241-33654/root/chroot_tmpdir/scmroot/grhino
Cloning into '/var/lib/mock/f39-build-1466241-33654/root/chroot_tmpdir/scmroot/grhino'...
$ git fetch origin 14dbe8cb9ec75f852e6fd86077b0296095d70baf:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/grhino
 * [new ref]         14dbe8cb9ec75f852e6fd86077b0296095d70baf -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 14dbe8c Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild