TextEdit with line wrapping becomes unusable when repeatedly setting text via code.

[MewPurPur]

Tested versions

4.4 betas

System information

Godot v4.4.beta2 - Pop!_OS 22.04 LTS on X11 - X11 display driver, Multi-window, 1 monitor - OpenGL 3 (Compatibility) - Mesa Intel(R) Graphics (ADL GT2) - 12th Gen Intel(R) Core(TM) i5-1235U (12 threads)

Issue description

In 4.4 beta, it's very trivial to trigger an error in TextEdit where you consistently get the following error when setting the text: <anonymous lambda>(): Condition "total_visible_line_count < 0" is true. <C++ Source> scene/gui/text_edit.cpp:444 @ remove_range() <Stack Trace> Benchmark.gd:12 @ <anonymous lambda>()

It points here:

godot/scene/gui/text_edit.cpp

Line 444 in a013481

ERR_FAIL_COND(total_visible_line_count < 0); // BUG

It's not just an error spam, this also messes up the scrollbar and makes it impossible to scroll down in the text, so it pretty much completely ruins the node if you need to do this.

Sorry for the hideous crop:

2025-01-31.00-04-33.mp4

Steps to reproduce

const test_row = "zzz zzz zzz zzz zzz zzz zzz\n"

func _ready() -> void:
	var code_edit := TextEdit.new()
	code_edit.wrap_mode = TextEdit.LINE_WRAPPING_BOUNDARY
	add_child(code_edit)
	code_edit.size = Vector2(200, 125)
	
	var timer := Timer.new()
	timer.timeout.connect(func(): code_edit.text = test_row.repeat(5))
	add_child(timer)
	timer.start()

Minimal reproduction project (MRP)

Haven't made one, but I provided the code to replicate this.

[MewPurPur]

This is a regression from 4.3 also.

[J-Hendrick]

I have experienced this same exact problem here too. Running 4.4 b1. Windows 11.