BBCode tags are closed prematurely in "print_rich()" method if the provided text contains "\n" in it

[TheRealSlander]

Godot version

4.2.dev1

System information

Manjaro Linux (DE: Cinnamon v5.8.4) 64 bits

Issue description

The title already explains it. Take a look at the steps to reproduce below.

Steps to reproduce

In a GDScript _ready() function write this:
print_rich("[color=red]Red line\n2nd red line[/color]")

the second line is not red and the output is as follow:

I tested all the the possible BBCodes for the print_rich() method (as stated in the documentation), and of course they all failed.

The RichTextLabel in my projects works as expected.

Minimal reproduction project

N/A

[AThousandShips]

This is by design, in #79011, but needs to be documented, this is because it splits lines for processing messages correctly, so might be an unforeseen consequence of two different behaviors merging (and assumptions that print_rich should contain a single line), but the behavior is there to prevent errors in the output, so unsure how it should be solved other than documenting it

[AThousandShips]

CC @bruvzg