### Godot version

4.0 stable

### System information

Manjaro Linux, kernel 6.1.1-1-MANJARO, AMD Ryzen 5 3600, AMD RX 580

### Issue description

The `wrap_mode` property of the `TextEdit` node doesn't seem to really do anything. Setting it to `LINE_WRAPPING_BOUNDARY` simply means that there won't be an horizontal scrollbar if the text overshoots the boundary, instead of actually forcing the text to the next line so that it stays visible.

### Steps to reproduce

Create a TextEdit node and set its `wrap_mode` property to `LINE_WRAPPING_BOUNDARY`

### Minimal reproduction project

[WrapBugDemo.zip](https://github.com/godotengine/godot/files/10875969/WrapBugDemo.zip)

ERR_FAIL_INDEX_V(p_caret, carets.size(), -1);
	ERR_FAIL_COND_V(!has_selection(p_caret), -1);
	return carets[p_caret].selection.selecting_line;
}
int TextEdit::get_selection_column(int p_caret) const {
	ERR_FAIL_INDEX_V(p_caret, carets.size(), -1);
	ERR_FAIL_COND_V(!has_selection(p_caret), -1);
	return carets[p_caret].selection.selecting_column;
}
int TextEdit::get_selection_from_line(int p_caret) const {
	ERR_FAIL_INDEX_V(p_caret, carets.size(), -1);
	ERR_FAIL_COND_V(!has_selection(p_caret), -1);
	return carets[p_caret].selection.from_line;
}
int TextEdit::get_selection_from_column(int p_caret) const {