$ git clone -n https://src.fedoraproject.org/rpms/rust-procfs0.14.git /var/lib/mock/f38-build-side-42-init-devel-1089058-30041/root/chroot_tmpdir/scmroot/rust-procfs0.14
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-1089058-30041/root/chroot_tmpdir/scmroot/rust-procfs0.14'...
$ git fetch origin 88d3a503a2831723a126a1cc643e478adafa62b3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-procfs0.14
 * [new ref]         88d3a503a2831723a126a1cc643e478adafa62b3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 88d3a50 Initial Fedora package