$ git clone -n https://src.fedoraproject.org/rpms/rust-cargo-lock.git /var/lib/mock/f39-build-1656216-40543/root/chroot_tmpdir/scmroot/rust-cargo-lock
Cloning into '/var/lib/mock/f39-build-1656216-40543/root/chroot_tmpdir/scmroot/rust-cargo-lock'...
$ git fetch origin 22179962e2a34cfbf7faea0478d87df670502837:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-cargo-lock
 * [new ref]         22179962e2a34cfbf7faea0478d87df670502837 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2217996 Initial import (#2242763)