$ git clone -n https://src.fedoraproject.org/rpms/python-pymacaroons-pynacl.git /var/lib/mock/f45-build-32300-658/root/chroot_tmpdir/scmroot/python-pymacaroons-pynacl
Cloning into '/var/lib/mock/f45-build-32300-658/root/chroot_tmpdir/scmroot/python-pymacaroons-pynacl'...
$ git fetch origin a19d83461a41b28436fbeb2b6224c94aa6072c76:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/python-pymacaroons-pynacl
 * [new ref]         a19d83461a41b28436fbeb2b6224c94aa6072c76 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a19d834 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild