How to get full message in new version of VK API?

Question

API

How to get a full (not cropped) message from the callback server with is_cropped = true with VK API version 5.124 ?

messages.getById(message_ids=?, group_id=event.group_id);

If I specify an ID from the
event.object.message.id or
event.object.message.conversation_message_id field, for some reason
I get a different (foreign) message.
If the messages.get method is deprecated and messages.getByConversationMessageId is only for conversations, how do I make a request?