$ git clone -n https://src.fedoraproject.org/rpms/python-mongoengine.git /var/lib/mock/f40-build-2204345-51955/root/chroot_tmpdir/scmroot/python-mongoengine
Cloning into '/var/lib/mock/f40-build-2204345-51955/root/chroot_tmpdir/scmroot/python-mongoengine'...
$ git fetch origin 1b1c6aa4ba475ef10c8c38fe2e5c58cfd73c72fc:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-mongoengine
 * [new ref]         1b1c6aa4ba475ef10c8c38fe2e5c58cfd73c72fc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1b1c6aa Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild