Sentinel.execute_command doesn't execute across the entire sentinel cluster

[SyedTahaA]

Version: 4.3.4

Platform: Python 3.8.10 on Ubuntu 20.04

Description: When the once argument isn't given or is set to false, the Sentinel.execute_command doesn't execute across the sentinel cluster like the documentation suggests.

For example,

when I connect to a sentinel cluster with two sentinels, and run the execute_command, only one of the sentinels receive the command.

Sentinel 1 logs (doesn't receive RESET command)

Sentinel 2 logs (receives RESET command)

It also seems like if the once argument is set to True, then instead of executing the command on just 1 random sentinel, the command is executed across the cluster.