$ git clone -n https://src.fedoraproject.org/rpms/ghc-foldl.git /var/lib/mock/f40-build-746211-112491/root/chroot_tmpdir/scmroot/ghc-foldl
Cloning into '/var/lib/mock/f40-build-746211-112491/root/chroot_tmpdir/scmroot/ghc-foldl'...
$ git fetch origin 45cfc0566786b37ad2a79cbd9996599926a61dd1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-foldl
 * [new ref]         45cfc0566786b37ad2a79cbd9996599926a61dd1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 45cfc05 https://hackage.haskell.org/package/foldl-1.4.15/changelog