GuildMessageReceivedEvent fires for private messages

[davidovski]

General Troubleshooting

• [x] I have checked for similar issues.
• [x] I have updated to the latest JDA version.
• [x] I have checked the branches or the maintainers' PRs for upcoming bug fixes.

Bug Report

The GuildMessageReceivedEvent is fired when the bot receives a private message.

Expected Behavior

This event should not be fired when the message is received in a private message channel.

Code Example or Reproduction Steps

1. Create a jda instance
2. Make a new class extending ListenerAdapter
3. add the method:

   public void onGuildMessageReceived(@Nonnull GuildMessageReceivedEvent event) {
       System.out.println(event.getMessage().getContentDisplay());

   to the class

4. add the listener to the jda instance.

Code for JDABuilder or DefaultShardManagerBuilder Used

client = JDABuilder.createDefault(config.getString("token"), intents).build();

(intents is a list of intents that the bot will need)

Exception or Error

N/A

[MinnDevelopment]

I can't reproduce this. And the code internals suggest that this is impossible.