### Godot version

v4.0.beta.custom_build [13f0158]

### System information

Windows 10

### Issue description

When doing operations (`begin_complex_operation` and `end_complex_operation`) with multiple selections in TextEdit, some of these selections don't revert upon undo. This behavior is affects some of script editor's operations, like duplicate selection and delete lines.

### Steps to reproduce

Open script editor, make multiple selections. Keep in mind what you have selected. Do duplicate selection (ctrl+shift+D). Undo (ctrl+Z). Compare the result to what you remember.

### Minimal reproduction project

N/A
CHECK(text_edit->is_drawing_minimap());
		text_edit->set_draw_minimap(false);
		CHECK_FALSE(text_edit->is_drawing_minimap());
	}
	SUBCASE("[TextEdit] minimap width") {
		text_edit->set_minimap_width(-1);
		CHECK(text_edit->get_minimap_width() == -1);
		text_edit->set_minimap_width(1000);
		CHECK(text_edit->get_minimap_width() == 1000);
	}
	SUBCASE("[TextEdit] line color background") {
		ERR_PRINT_OFF;
		text_edit->set_line_background_color(-1, Color("#ff0000"));
		text_edit->set_line_background_color(0, Color("#00ff00"));
		text_edit->set_line_background_color(1, Color("#0000ff"));
		CHECK(text_edit->get_line_background_color(-1) == Color());
		CHECK(text_edit->get_line_background_color(0) == Color("#00ff00"));
		CHECK(text_edit->get_line_background_color(1) == Color());
		ERR_PRINT_ON;
		text_edit->set_line_background_color(0, Color("#ffff00"));
		CHECK(text_edit->get_line_background_color(0) == Color("#ffff00"));
	}
	memdelete(text_edit);
}
TEST_CASE("[SceneTree][TextEdit] gutters") {
	TextEdit *text_edit = memnew(TextEdit);
	SceneTree::get_singleton()->get_root()->add_child(text_edit);
	Array empty_signal_args;
	empty_signal_args.push_back(Array());
	SIGNAL_WATCH(text_edit, "gutter_clicked");