$ git clone -n https://src.fedoraproject.org/rpms/ghc-pattern-arrows.git /var/lib/mock/f31-build-100856-33326/root/chroot_tmpdir/scmroot/ghc-pattern-arrows
Cloning into '/var/lib/mock/f31-build-100856-33326/root/chroot_tmpdir/scmroot/ghc-pattern-arrows'...
$ git reset --hard d20adf577cbdf45f1c9a5322a06558492edf3382
HEAD is now at d20adf5 BR prof for lib and static for executable