### 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)

delete_selection(p_caret);
		cut_copy_line = "";
		return;
	}
	begin_complex_operation();
	Vector<int> carets_to_remove;
	StringBuilder clipboard;
	
	Vector<int> caret_edit_order = get_caret_index_edit_order();
	for (int i = caret_edit_order.size() - 1; i >= 0; i--) {
		int caret_idx = caret_edit_order[i];
		if (p_caret != -1 && p_caret != caret_idx) {
			continue;
		}
		int cl = get_caret_line(caret_idx);
		int cc = get_caret_column(caret_idx);
		int indent_level = get_indent_level(cl);
		double hscroll = get_h_scroll();
		
		
		for (int j = i - 1; j >= 0; j--) {
			if (get_caret_line(caret_edit_order[j]) == cl) {
				carets_to_remove.push_back(caret_edit_order[j]);
				i = j;
			}
		}
		clipboard += text[cl];
		if (p_caret == -1 && caret_idx != 0) {
			clipboard += "\n";
		}