### Godot version

v4.0.beta14.official

### System information

Windows 11 22H2

### Issue description

There's not much to it, simply noticed that if you have Find or Find+Replace opened in the Script Editor, the Multi-Caret functionality seems to stop working -- forcibly removing all other carets after the first character is typed. I'd expect the Multi-Caret to remain until unselected by clicking elsewhere.

The content of what's in "Find" doesn't matter, it happens regardless.

https://user-images.githubusercontent.com/8159582/214234069-cbcc1681-3f09-4b10-9a90-857cc91d41a7.mp4



### Steps to reproduce

1. Open the Find or Find+Replace tool in the Script Editor _(nothing has to be inputted)_
2. Add multiple mouse cursors with Ctrl+Alt+Click **OR** highlight something and then highlight additional duplicates with Ctrl+D _(or synonymous keyboard shortcuts depending on OS)_.
3. Start typing as if going to add or replace in all locations where the multi-caret is

### Minimal reproduction project

N/A
int indent_size = EDITOR_GET("text_editor/behavior/indent/size");
	indent_size -= 1;
	Vector<int> cursor_columns;
	cursor_columns.resize(text_editor->get_caret_count());
	for (int c = 0; c < text_editor->get_caret_count(); c++) {
		cursor_columns.write[c] = text_editor->get_caret_column(c);
	}
	bool changed_indentation = false;
	for (int i = 0; i < text_editor->get_line_count(); i++) {
		String line = text_editor->get_line(i);
		if (line.length() <= 0) {
			continue;
		}
		int j = 0;
		int space_count = -1;
		while (j < line.length() && (line[j] == ' ' || line[j] == '\t')) {
			if (line[j] != '\t') {
				space_count++;
				if (space_count == indent_size) {
					if (!changed_indentation) {
						text_editor->begin_complex_operation();