$ git clone -n https://src.fedoraproject.org/rpms/fedora-appstream-metadata.git /var/lib/mock/f41-build-side-1-3049590-37900/root/chroot_tmpdir/scmroot/fedora-appstream-metadata
Cloning into '/var/lib/mock/f41-build-side-1-3049590-37900/root/chroot_tmpdir/scmroot/fedora-appstream-metadata'...
$ git fetch origin d3f53729288f5e26c1398af09966f02c7518810a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/fedora-appstream-metadata
 * [new ref]         d3f53729288f5e26c1398af09966f02c7518810a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d3f5372 Update F38 EOL & F41 release