Let me tell you folks, I've been caught out by gun law changes more times than I can remember, loads and loads of times. The most painful example that comes to mind was that I used to own one of the original XM9 P226 test pistols used by the US military. I sold it to a collector in Germany for a mint, and then handguns were banned in GB and I could have kept it because it would have been exempt from the ban.
But how the hell was I to know a primary school in Scotland was going to get shot up by a nutcase?
You can't sit there sweating, because you don't actually know what will happen. Will they ban semi-autos? Unlikely, more likely just they'd go for all restricted firearms, but then again, maybe they might tack on some other semi-autos, and who the hell knows if they'll have the votes? Who knows when they'll be elected? Who knows how far up on the political scale it will be? Who knows whether there might be a grandfather/opt-in/opt-out clause or what the province might do (hmm, unless you live in Ontario)?
They're not going to forget that they lost the last election partially because of the gun issue, and they're not going to forget what a complete PITA the registry has been. Just because some resolution was adopted doesn't mean that translates directly into legislation.
All sorts of resolutions get adopted and it doesn't mean anything.
What it boils down to is that the Liberals are anti-gun (like you didn't already know that) so don't vote for them!