Stepan Bagritsevich

Fix a bug where replicas remove other elements during `SPOP`. Now all the tests are passed. @dranikpg , please take a look.

I would like to add that `SRANDMEMBER` and `SPOP` have the same problem. Both commands return/remove only the lowest scoring element(s). ### SRANDMEMBER The steps to reproduce the behavior of...

> Hi @BagritsevichStepan - thank you very much for this PR. I understand that you are aware of the tradeoffs - you specified them in the PR description. You decided...

I fixed the code review comments. @adiholden @dranikpg please take a second look, thank you!