$ git clone -n https://src.fedoraproject.org/rpms/ghc-indexed-traversable.git /var/lib/mock/f38-build-side-42-init-devel-904769-28620/root/chroot_tmpdir/scmroot/ghc-indexed-traversable
Cloning into '/var/lib/mock/f38-build-side-42-init-devel-904769-28620/root/chroot_tmpdir/scmroot/ghc-indexed-traversable'...
$ git fetch origin 4b492a02cb2de3094ee7647c657cbe37b8b6d663:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-indexed-traversable
 * [new ref]         4b492a02cb2de3094ee7647c657cbe37b8b6d663 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4b492a0 Convert to %autorelease and %autochangelog