$ git clone -n https://src.fedoraproject.org/rpms/python-mailman-hyperkitty.git /var/lib/mock/f45-build-31389-652/root/chroot_tmpdir/scmroot/python-mailman-hyperkitty
Cloning into '/var/lib/mock/f45-build-31389-652/root/chroot_tmpdir/scmroot/python-mailman-hyperkitty'...
$ git fetch origin 5e23e1a11a9d9dc75a79947517ba5188f81f82b3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-mailman-hyperkitty
 * [new ref]         5e23e1a11a9d9dc75a79947517ba5188f81f82b3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5e23e1a Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild