Communication: Selecting a channel calls messages api twice

[PaRangger]

Describe the bug

When selecting a channel the /course/id/messages api is called twice. This is inefficient and also creates a flashing ui effect of the messages appearing shortly, dissapearing and appearing again.

To Reproduce

Open the "Network" tool inside the browser, to check all activity

1. Go to course
2. Go to communication
3. Select a channel
4. Check the network tool for calls to the /messages api

Expected behavior

The client should only request the messages once, then display them.

Screenshots

Which version of Artemis are you seeing the problem on?

7.6.1

What browsers are you seeing the problem on?

Chrome

Additional context

No response

Relevant log output

No response