the problem

__on_player_command cannot be canceled

how dose the issue cause

At bf00051#diff-c0b8d21ffce3a7e67a88bad905379bdccb7d9b64e9be98f4739607b1573b75a0

The __on_player_message event was added
At the moment, the event was uncancelable

At 24b9c38#diff-c0b8d21ffce3a7e67a88bad905379bdccb7d9b64e9be98f4739607b1573b75a0R302

Many event have ability to canceled

At 43bb844#diff-c0b8d21ffce3a7e67a88bad905379bdccb7d9b64e9be98f4739607b1573b75a0R313

The __on_player_command event was also added
to make on_player_message event not triggered by player command
but at the same time 43bb844#diff-8604ab23b322f862f9399fb1e6a685ea4900460b0202453c399f8221c09ba72c
the docs was modified, the line 321 was been moved to line 324, with no changes
witch tells people "the command event is cancelable, the message event is not"

but the truth is the command event mixin can't cancel 43bb844#diff-c0b8d21ffce3a7e67a88bad905379bdccb7d9b64e9be98f4739607b1573b75a0R313

So now the __on_player_command event can't cancel
and the __on_player_message can

how to fix it

add a ci.cancel at

change docs for these two event