$ git clone -n https://src.fedoraproject.org/rpms/ghc-random.git /var/lib/mock/f38-build-side-42-init-devel-703984-27088/root/chroot_tmpdir/scmroot/ghc-random
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-703984-27088/root/chroot_tmpdir/scmroot/ghc-random'...
$ git fetch origin 5e0b24fd6e76bd46aec66008e545d86d1dda06a0:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-random
 * [new ref]         5e0b24fd6e76bd46aec66008e545d86d1dda06a0 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5e0b24f update to 1.2.1.1