Collect garbage only in gui mode.

--HG--
branch : develop

src/app/valentina/mainwindow.cpp

@@ -4719,6 +4719,8 @@ bool MainWindow::LoadPattern(QString fileName, const QString& customMeasureFile)
 
     if (guiEnabled)
     { // No errors occurred
+        if (qApp->IsGUIMode())
+        {
             /* Collect garbage only after successfully parse. This way wrongly accused items have one more time to restore
              * a reference. */
 #if QT_VERSION >= QT_VERSION_CHECK(5, 4, 0)
@@ -4726,6 +4728,7 @@ bool MainWindow::LoadPattern(QString fileName, const QString& customMeasureFile)
 #else
             doc->GarbageCollector(true);
 #endif
+        }
 
         patternReadOnly = doc->IsReadOnly();
         SetEnableWidgets(true);