$ git clone -n https://src.fedoraproject.org/rpms/ghc-Decimal.git /var/lib/mock/f31-build-115478-34502/root/chroot_tmpdir/scmroot/ghc-Decimal
Cloning into '/var/lib/mock/f31-build-115478-34502/root/chroot_tmpdir/scmroot/ghc-Decimal'...
$ git reset --hard 630017d21bdd04d58b0f57921b6feed50380a9d0
HEAD is now at 630017d BR prof for lib and static for executable