$ git clone -n https://src.fedoraproject.org/rpms/ghc-language-c.git /var/lib/mock/f31-build-111958-34236/root/chroot_tmpdir/scmroot/ghc-language-c
Cloning into '/var/lib/mock/f31-build-111958-34236/root/chroot_tmpdir/scmroot/ghc-language-c'...
$ git reset --hard 83923bee8b32eb4944c32e5602fc907c39a5bc73
HEAD is now at 83923be BR prof for lib and static for executable