$ git clone -n https://src.fedoraproject.org/rpms/ghc-exceptions.git /var/lib/mock/f31-build-116340-34549/root/chroot_tmpdir/scmroot/ghc-exceptions
Cloning into '/var/lib/mock/f31-build-116340-34549/root/chroot_tmpdir/scmroot/ghc-exceptions'...
$ git reset --hard b71840322ebad96891511865b436b32ab193dd8c
HEAD is now at b718403 BR prof for lib and static for executable