$ git clone -n https://src.fedoraproject.org/rpms/ghc-HsOpenSSL.git /var/lib/mock/f40-build-742423-110760/root/chroot_tmpdir/scmroot/ghc-HsOpenSSL
Cloning into '/var/lib/mock/f40-build-742423-110760/root/chroot_tmpdir/scmroot/ghc-HsOpenSSL'...
$ git fetch origin c426a29699b01f9158596e2f7ab787808c16fc54:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/ghc-HsOpenSSL
 * [new ref]         c426a29699b01f9158596e2f7ab787808c16fc54 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c426a29 https://hackage.haskell.org/package/HsOpenSSL-0.11.7.6/changelog