$ git clone -n https://src.fedoraproject.org/rpms/ghc-X11.git /var/lib/mock/f31-build-110549-34039/root/chroot_tmpdir/scmroot/ghc-X11
Cloning into '/var/lib/mock/f31-build-110549-34039/root/chroot_tmpdir/scmroot/ghc-X11'...
$ git reset --hard ee0cf3efe925f0cdffedbb1305b4c0d8082e1717
HEAD is now at ee0cf3e BR prof for lib and static for executable