$ git clone -n https://src.fedoraproject.org/rpms/python-gast.git /var/lib/mock/f45-build-30794-647/root/chroot_tmpdir/scmroot/python-gast
Cloning into '/var/lib/mock/f45-build-30794-647/root/chroot_tmpdir/scmroot/python-gast'...
$ git fetch origin 7f9adf48a5bc43717620c058fa66c583f0fdab3c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-gast
 * [new ref]         7f9adf48a5bc43717620c058fa66c583f0fdab3c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7f9adf4 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild