$ git clone -n https://src.fedoraproject.org/rpms/ghc-strict.git /var/lib/mock/f39-build-1926782-43049/root/chroot_tmpdir/scmroot/ghc-strict
Cloning into '/var/lib/mock/f39-build-1926782-43049/root/chroot_tmpdir/scmroot/ghc-strict'...
$ git fetch origin d47b9e0a1110f87084d09ddd170918c8805dd2b7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-strict
 * [new ref]         d47b9e0a1110f87084d09ddd170918c8805dd2b7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at d47b9e0 https://hackage.haskell.org/package/strict-0.5/changelog