$ git clone -n https://src.fedoraproject.org/rpms/ghc-MonadRandom.git /var/lib/mock/f38-build-side-42-init-devel-879752-28485/root/chroot_tmpdir/scmroot/ghc-MonadRandom
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-879752-28485/root/chroot_tmpdir/scmroot/ghc-MonadRandom'...
$ git fetch origin 4a57eb9fa5150092f1f4dc63bb23fc63f318e8ac:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-MonadRandom
 * [new ref]         4a57eb9fa5150092f1f4dc63bb23fc63f318e8ac -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4a57eb9 Convert to %autorelease and %autochangelog