$ git clone -n https://src.fedoraproject.org/rpms/olive.git /var/lib/mock/f45-build-20937-576/root/chroot_tmpdir/scmroot/olive
Cloning into '/var/lib/mock/f45-build-20937-576/root/chroot_tmpdir/scmroot/olive'...
$ git fetch origin 4f3bf22770088a565dbc79aa55a884c17b8aa46f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/olive
 * [new ref]         4f3bf22770088a565dbc79aa55a884c17b8aa46f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4f3bf22 Rebuilt for FFmpeg 9