$ git clone -n https://src.fedoraproject.org/rpms/ghc-data-default-instances-old-locale.git /var/lib/mock/f31-build-111227-34138/root/chroot_tmpdir/scmroot/ghc-data-default-instances-old-locale
Cloning into '/var/lib/mock/f31-build-111227-34138/root/chroot_tmpdir/scmroot/ghc-data-default-instances-old-locale'...
$ git reset --hard ec3b805a4e331c4fca21cc82210b7c4f3702d71e
HEAD is now at ec3b805 BR prof for lib and static for executable