$ git clone -n https://src.fedoraproject.org/rpms/libmwaw.git /var/lib/mock/f45-build-16622-488/root/chroot_tmpdir/scmroot/libmwaw
Cloning into '/var/lib/mock/f45-build-16622-488/root/chroot_tmpdir/scmroot/libmwaw'...
$ git fetch origin c8cee3a4fa23af9554b69be14879bde8d092b1f6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libmwaw
 * [new ref]         c8cee3a4fa23af9554b69be14879bde8d092b1f6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c8cee3a Update to a new upstream release