$ git clone -n https://src.fedoraproject.org/rpms/rust-sval_serde.git /var/lib/mock/f38-build-side-43-rust-devel-1413900-31445/root/chroot_tmpdir/scmroot/rust-sval_serde
Cloning into '/var/lib/mock/f38-build-side-43-rust-devel-1413900-31445/root/chroot_tmpdir/scmroot/rust-sval_serde'...
$ git fetch origin 3e4477757fd0a84c279a4016689e9610bf83f987:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-sval_serde
 * [new ref]         3e4477757fd0a84c279a4016689e9610bf83f987 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 3e44777 Initial import (#2217044)