Merge pull request #2827 from Capostrophic/dialogue

Only reset dialogue history of dialogue GUI mode is gone

apps/openmw/mwgui/dialogue.cpp

@@ -477,6 +477,8 @@ namespace MWGui
 
     void DialogueWindow::onClose()
     {
+        if (MWBase::Environment::get().getWindowManager()->containsMode(GM_Dialogue))
+            return;
         // Reset history
         for (DialogueText* text : mHistoryContents)
             delete text;