Fix lookup symbol in scripts which doesn't open a tab at first attempt

editor/plugins/script_editor_plugin.cpp

@@ -3291,15 +3291,8 @@ void ScriptEditor::_help_class_open(const String &p_class) {
 void ScriptEditor::_help_class_goto(const String &p_desc) {
 	String cname = p_desc.get_slice(":", 1);
 
-	for (int i = 0; i < tab_container->get_tab_count(); i++) {
-		EditorHelp *eh = Object::cast_to<EditorHelp>(tab_container->get_tab_control(i));
-
-		if (eh && eh->get_class() == cname) {
-			_go_to_tab(i);
-			eh->go_to_help(p_desc);
-			_update_script_names();
-			return;
-		}
+	if (_help_tab_goto(cname, p_desc)) {
+		return;
 	}
 
 	EditorHelp *eh = memnew(EditorHelp);
@@ -3313,6 +3306,22 @@ void ScriptEditor::_help_class_goto(const String &p_desc) {
 	_sort_list_on_update = true;
 	_update_script_names();
 	_save_layout();
+
+	call_deferred("_help_tab_goto", cname, p_desc);
+}
+
+bool ScriptEditor::_help_tab_goto(const String &p_name, const String &p_desc) {
+	for (int i = 0; i < tab_container->get_tab_count(); i++) {
+		EditorHelp *eh = Object::cast_to<EditorHelp>(tab_container->get_tab_control(i));
+
+		if (eh && eh->get_class() == p_name) {
+			_go_to_tab(i);
+			eh->go_to_help(p_desc);
+			_update_script_names();
+			return true;
+		}
+	}
+	return false;
 }
 
 void ScriptEditor::update_doc(const String &p_name) {
@@ -3601,6 +3610,7 @@ void ScriptEditor::_bind_methods() {
 
 	ClassDB::bind_method("_update_script_connections", &ScriptEditor::_update_script_connections);
 	ClassDB::bind_method("_help_class_open", &ScriptEditor::_help_class_open);
+	ClassDB::bind_method("_help_tab_goto", &ScriptEditor::_help_tab_goto);
 	ClassDB::bind_method("_live_auto_reload_running_scripts", &ScriptEditor::_live_auto_reload_running_scripts);
 	ClassDB::bind_method("_update_members_overview", &ScriptEditor::_update_members_overview);
 	ClassDB::bind_method("_update_recent_scripts", &ScriptEditor::_update_recent_scripts);

editor/plugins/script_editor_plugin.h

@@ -440,6 +440,7 @@ class ScriptEditor : public PanelContainer {
 
 	void _help_class_open(const String &p_class);
 	void _help_class_goto(const String &p_desc);
+	bool _help_tab_goto(const String &p_name, const String &p_desc);
 	void _update_history_arrows();
 	void _save_history();
 	void _go_to_tab(int p_idx);