$ git clone -n https://src.fedoraproject.org/rpms/rust-procfs0.12.git /var/lib/mock/f38-build-side-43-rust-devel-1418477-31459/root/chroot_tmpdir/scmroot/rust-procfs0.12
Cloning into '/var/lib/mock/f38-build-side-43-rust-devel-1418477-31459/root/chroot_tmpdir/scmroot/rust-procfs0.12'...
$ git fetch origin 446a3597dabf3b9bb454d576588096aae511f768:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-procfs0.12
 * [new ref]         446a3597dabf3b9bb454d576588096aae511f768 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 446a359 Initial Fedora package