### 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
#include "code_editor.h"
#include "core/input/input.h"
#include "core/os/keyboard.h"
#include "core/string/string_builder.h"
#include "core/templates/pair.h"
#include "editor/editor_scale.h"
#include "editor/editor_settings.h"
#include "editor/plugins/script_editor_plugin.h"
#include "scene/resources/font.h"
void GotoLineDialog::popup_find_line(CodeEdit *p_edit) {
	text_editor = p_edit;
	line->set_text(itos(text_editor->get_caret_line()));
	line->select_all();
	popup_centered(Size2(180, 80) * EDSCALE);
	line->grab_focus();
}
int GotoLineDialog::get_line() const {