@PostSubscribe with ChatSendEvent behaves weirdly.

[Janrupf]

Description
When using @PostSubscribe and sending a message to the player, the message will appear before the actual chat message from the player.

To Reproduce the Bug

  @PostSubscribe
  public void onChat(ChatSendEvent event, ChatConfig config, ClientPlayer player) {
    if (event.getMessage().equals("Remind me!")) {
      player.sendMessage(
          textComponentBuilderFactory.newBuilder().text("You will be reminded in 60 seconds!").build(), null);
    }
  }

Chat output:

You will be reminded in 60 seconds!
<FlintGradle> Remind me!

Expected behavior
The message You will be reminded in 60 seconds! appears after the Remind me! message has been displayed.

Screenshots

Log Output

[21:04:01] [Server thread/INFO]: <FlintGradle> Remind me!
[21:04:01] [main/INFO]: [CHAT] You will be reminded in 60 seconds!
[21:04:01] [main/INFO]: [CHAT] <FlintGradle> Remind me!

System Information (please fill in):

• Operating System: Arch Linux 5.11.6-arch1-1
• Launcher: flint-gradle
• Installed Mods: Modified package template
• Flint Version: 2.0.26
• Minecraft Versions: 1.15.2
• Java Version: OpenJDK 64-Bit Server VM (build 25.282-b08, mixed mode)