$ git clone -n https://src.fedoraproject.org/rpms/ghc-mono-traversable.git /var/lib/mock/f38-build-side-42-init-devel-866647-28439/root/chroot_tmpdir/scmroot/ghc-mono-traversable
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-866647-28439/root/chroot_tmpdir/scmroot/ghc-mono-traversable'...
$ git fetch origin 13761cfcc1d57781c6a19a78278144a3e914f0d6:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-mono-traversable
 * [new ref]         13761cfcc1d57781c6a19a78278144a3e914f0d6 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 13761cf Convert to %autorelease and %autochangelog