In Canada, the masses of the NDP membership (as represented by delegates chosen at riding association general meetings) opposed Mulcair, while the caucus supported and continue to support him.That's unknown. It was not OMOV. It was a delegate vote, which may or may not have represented the membership at large.
As the membership decreases it appears that Mulcair's supporters become a greater percentage of the remaining members. A new leader that increased membership in the party would be a bad thing in Canada as it has been in the UK. After all political parties should be controlled from the capital and the political operatives that reside there.