$ git clone -n https://src.fedoraproject.org/rpms/ghc-io-streams.git /var/lib/mock/f31-build-100363-33254/root/chroot_tmpdir/scmroot/ghc-io-streams
Cloning into '/var/lib/mock/f31-build-100363-33254/root/chroot_tmpdir/scmroot/ghc-io-streams'...
$ git reset --hard d63c3d0380e61637e401ed8d33f9d81096f582ee
HEAD is now at d63c3d0 BR prof for lib and static for executable