$ git clone -n https://src.fedoraproject.org/rpms/ghc-hint.git /var/lib/mock/f40-build-2110844-50655/root/chroot_tmpdir/scmroot/ghc-hint
Cloning into '/var/lib/mock/f40-build-2110844-50655/root/chroot_tmpdir/scmroot/ghc-hint'...
$ git fetch origin 772cabebc79ac440d0d7ea2e979496a582de65b3:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-hint
 * [new ref]         772cabebc79ac440d0d7ea2e979496a582de65b3 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 772cabe https://hackage.haskell.org/package/hint-0.9.0.7/changelog