Fixes ZPOPMIN/ZPOPMAX wrong replies when count is 0 with non-zset (#9711)
Moves ZPOP ... 0 fast exit path after type check to reply with WRONGTYPE. In the past it will return an empty array. Also now count is not allowed to be negative. see #9680 before: ``` 127.0.0.1:6379> set zset str OK 127.0.0.1:6379> zpopmin zset 0 (empty array) 127.0.0.1:6379> zpopmin zset -1 (empty array) ``` after: ``` 127.0.0.1:6379> set zset str OK 127.0.0.1:6379> zpopmin zset 0 (error) WRONGTYPE Operation against a key holding the wrong kind of value 127.0.0.1:6379> zpopmin zset -1 (error) ERR value is out of range, must be positive ```
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