$ git clone -n https://src.fedoraproject.org/rpms/ghc-hspec-discover.git /var/lib/mock/f41-build-837625-159296/root/chroot_tmpdir/scmroot/ghc-hspec-discover
Cloning into '/var/lib/mock/f41-build-837625-159296/root/chroot_tmpdir/scmroot/ghc-hspec-discover'...
$ git fetch origin 7318143b5e1acea7663b6442160769b2b2859105:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-hspec-discover
 * [new ref]         7318143b5e1acea7663b6442160769b2b2859105 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 7318143 https://hackage.haskell.org/package/hspec-discover-2.11.9/changelog