$ git clone -n https://src.fedoraproject.org/rpms/python-mistune.git /var/lib/mock/f45-build-31544-652/root/chroot_tmpdir/scmroot/python-mistune
Cloning into '/var/lib/mock/f45-build-31544-652/root/chroot_tmpdir/scmroot/python-mistune'...
$ git fetch origin e675f524a78d8d4990e6ab8d99cd93e94fe64152:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-mistune
 * [new ref]         e675f524a78d8d4990e6ab8d99cd93e94fe64152 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e675f52 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild