$ git clone -n https://src.fedoraproject.org/rpms/jssc.git /var/lib/mock/f39-build-1521082-35836/root/chroot_tmpdir/scmroot/jssc
Cloning into '/var/lib/mock/f39-build-1521082-35836/root/chroot_tmpdir/scmroot/jssc'...
$ git fetch origin c7405266c32d2031c86f0fe59c7d298a8b019848:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/jssc
 * [new ref]         c7405266c32d2031c86f0fe59c7d298a8b019848 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c740526 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild