$ git clone -n https://src.fedoraproject.org/rpms/rust-serdect.git /var/lib/mock/f38-build-side-43-rust-devel-1413788-31445/root/chroot_tmpdir/scmroot/rust-serdect
Cloning into '/var/lib/mock/f38-build-side-43-rust-devel-1413788-31445/root/chroot_tmpdir/scmroot/rust-serdect'...
$ git fetch origin a62fcc6fdadedc3d2da4cd542ec3208f8398010a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-serdect
 * [new ref]         a62fcc6fdadedc3d2da4cd542ec3208f8398010a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a62fcc6 Initial import (#2213209)