ui: Fixed search query without node disappears when submiting search request

src/lib/component/controller/SearchController.cpp

@@ -14,7 +14,7 @@ SearchController::~SearchController()
 
 void SearchController::handleMessage(MessageActivateTokens* message)
 {
-	if (!message->keepContent())
+	if (!message->keepContent() && !message->isFromSearch)
 	{
 		getView()->setMatches(m_storageAccess->getSearchMatchesForTokenIds(message->tokenIds));
 	}

src/lib/component/controller/helper/ActivationTranslator.cpp

@@ -96,5 +96,6 @@ std::shared_ptr<MessageActivateTokens> ActivationTranslator::translateMessage(co
 	m = std::make_shared<MessageActivateTokens>(tokenIds);
 	m->undoRedoType = message->undoRedoType;
 	m->setKeepContent(message->keepContent());
+	m->isFromSearch = true;
 	return m;
 }