unset state variables

Author: Test

OpenDocumentReader/CoreWrapper.mm

@@ -30,6 +30,8 @@ - (bool)translate:(NSString *)inputPath into:(NSString *)outputPath with:(NSStri
     @synchronized(self) {
         try {
             _errorCode = 0;
+            _pageNames = nil;
+            _pagePaths = nil;
 
             if (html.has_value()) {
                 html.reset();