command processing seems to mess up its index while reading arguments

[cinnay]

There seems to be some index(?) issue somewhere in the cluster command processing.

I get a couple of error of these kinds:

RedisError: ERR unknown command bkt:-72:-396, with args beginning with:
at processTicksAndRejections (internal/process/task_queues.js:85:5) {
name: 'RedisError'
}
Edit: bkt:-72:-396 should be the key here, not the command.

RedisError: ERR unknown command 1, with args beginning with:
at processTicksAndRejections (internal/process/task_queues.js:85:5) {
name: 'RedisError'
}

RedisError: ERR Protocol error: expected '$', got ' '
at processTicksAndRejections (internal/process/task_queues.js:85:5) {
name: 'RedisError'
}