### Godot version

v4.1.beta.custom_build [afe65de11]

### System information

Debian Linux 12 Xfce

### Issue description

For an exported `PackedVector2Array` I am unable to select a different entry field with a mouse-click after an edit.

I have verified, that reverting #76711 fixes this issue.

### Steps to reproduce

1. Load and run MRP
2. select the main node in scene tree
3. Expand the `mypacked` variable in the inspector
4. click lmb on "Add Element"
5. click lmb in the x-entry-field
6. enter number "1"
7. click lmb in the y-entry-field

After 7 I would expect that the y-entry-field is selected, but no entry field is selected.

https://github.com/godotengine/godot/assets/6299227/997515ad-4e50-48a6-9e01-d9ba90e3114d

### Minimal reproduction project

https://github.com/godotengine/godot/files/11837624/empty.zip
if (i == amount) {
				PanelContainer *pc = memnew(PanelContainer);
				property_vbox->add_child(pc);
				pc->add_theme_style_override(SNAME("panel"), get_theme_stylebox(SNAME("DictionaryAddItem"), SNAME("EditorStyles")));
				add_vbox = memnew(VBoxContainer);
				pc->add_child(add_vbox);
			}
			prop->set_object_and_property(object.ptr(), prop_name);
			int change_index = 0;
			if (i < amount) {
				String cs = key.get_construct_string();
				prop->set_label(key.get_construct_string());
				prop->set_tooltip_text(cs);
				change_index = i + offset;
			} else if (i == amount) {
				prop->set_label(TTR("New Key:"));
				change_index = -1;
			} else if (i == amount + 1) {
				prop->set_label(TTR("New Value:"));
				change_index = -2;
			}
			prop->set_selectable(false);
			prop->connect("property_changed", callable_mp(this, &EditorPropertyDictionary::_property_changed));
			prop->connect("object_id_selected", callable_mp(this, &EditorPropertyDictionary::_object_id_selected));
			HBoxContainer *hbox = memnew(HBoxContainer);
			if (add_vbox) {
				add_vbox->add_child(hbox);
			} else {
				property_vbox->add_child(hbox);
			}