$ git clone -n https://src.fedoraproject.org/rpms/ghc-haskell-src-meta.git /var/lib/mock/f31-build-100231-33239/root/chroot_tmpdir/scmroot/ghc-haskell-src-meta
Cloning into '/var/lib/mock/f31-build-100231-33239/root/chroot_tmpdir/scmroot/ghc-haskell-src-meta'...
$ git reset --hard a1a069958052ca1bf0f7da12a00900b394b7295b
HEAD is now at a1a0699 BR prof for lib and static for executable