$ git clone -n https://src.fedoraproject.org/rpms/kf5-kfilemetadata.git /var/lib/mock/f45-build-14831-464/root/chroot_tmpdir/scmroot/kf5-kfilemetadata
Cloning into '/var/lib/mock/f45-build-14831-464/root/chroot_tmpdir/scmroot/kf5-kfilemetadata'...
$ git fetch origin da7fb33b1d58c5445997be67c8fdbc5c33d34ee9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf5-kfilemetadata
 * [new ref]         da7fb33b1d58c5445997be67c8fdbc5c33d34ee9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at da7fb33 Rebuilt for FFmpeg 9