$ git clone -n https://src.fedoraproject.org/rpms/python-metar.git /var/lib/mock/f45-build-31529-652/root/chroot_tmpdir/scmroot/python-metar
Cloning into '/var/lib/mock/f45-build-31529-652/root/chroot_tmpdir/scmroot/python-metar'...
$ git fetch origin ec4cd4a75e07be5bdb16c330c3c00eca6c449292:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-metar
 * [new ref]         ec4cd4a75e07be5bdb16c330c3c00eca6c449292 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at ec4cd4a Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild