$ git clone -n https://src.fedoraproject.org/rpms/python-jcconv.git /var/lib/mock/f39-build-1430280-31712/root/chroot_tmpdir/scmroot/python-jcconv
Cloning into '/var/lib/mock/f39-build-1430280-31712/root/chroot_tmpdir/scmroot/python-jcconv'...
$ git fetch origin 313b2bbb7221a0ece42c3ed68bd25f96b91abb82:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-jcconv
 * [new ref]         313b2bbb7221a0ece42c3ed68bd25f96b91abb82 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 313b2bb Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild