$ git clone -n https://src.fedoraproject.org/rpms/rust-lv2-midi.git /var/lib/mock/f38-build-side-42-init-devel-1178818-30617/root/chroot_tmpdir/scmroot/rust-lv2-midi
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1178818-30617/root/chroot_tmpdir/scmroot/rust-lv2-midi'...
$ git fetch origin fd3d1484e44851264eee61e7223c6632033c6265:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-lv2-midi
 * [new ref]         fd3d1484e44851264eee61e7223c6632033c6265 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at fd3d148 Initial import; Fixes: RHBZ#2224769