$ git clone -n https://src.fedoraproject.org/rpms/tang.git /var/lib/mock/f39-build-1652296-40498/root/chroot_tmpdir/scmroot/tang
Cloning into '/var/lib/mock/f39-build-1652296-40498/root/chroot_tmpdir/scmroot/tang'...
$ git fetch origin 11b83e6ea39c5d069c343d34cc7fe1e8216543a2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/tang
 * [new ref]         11b83e6ea39c5d069c343d34cc7fe1e8216543a2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 11b83e6 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild