Well, apparently not. The same Prime Minister has announced that ratification was being "suspended" while the High Court deliberates on whether a referendum needs to be called or not.
But a judge in the case earlier put a statement expressing "surprise" that the government had pressed ahead with the ratification process.I am a little surprised at the judge's "surprise". Maybe he was indulging in judicial irony.
The prime minister responded by saying "ratification will not take place of course until we have the judgement".