“I reserve the right to take an independent action for the interests of my constituents but against a group decision” I paraphrase but a campaigner protested that an agent had a bust up with this campaigner because this campaigner insisted that an item of election literature contained something like this phrase. Why is this controversial? It’s a given.
Liberals are rebels. Someone might know, if they know me, I have experience of this. Sometimes it turns bad, there are mechanisms for coping with this. Acting for the people is after all what good campaigning is about.