I'd like to submit a PR implementing key prefixing for LMPOP and BLMPOP, but had a quick implementation question first.

LMPOP and BLMPOP return the name of the key that an item was popped from. The question is, should the prefix be stripped from the return values?

I've had a look through past issues and found two issues (#150, #98) stating that prefixes shouldn't be stripped, but because they were both about the KEYS command I should double check that that's the desired behaviour for all commands.