$ git clone -n https://src.fedoraproject.org/rpms/R-jquerylib.git /var/lib/mock/f39-build-1544793-36668/root/chroot_tmpdir/scmroot/R-jquerylib
Cloning into '/var/lib/mock/f39-build-1544793-36668/root/chroot_tmpdir/scmroot/R-jquerylib'...
$ git fetch origin daf86d45f49f636f4f69f0e0293b15f4645874a2:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/R-jquerylib
 * [new ref]         daf86d45f49f636f4f69f0e0293b15f4645874a2 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at daf86d4 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild