Issue 7097 - Make element hiding filter objects ephemeral

lib/elemHide.js

 /*
  * This file is part of Adblock Plus <https://adblockplus.org/>,
  * Copyright (C) 2006-present eyeo GmbH
  *
  * Adblock Plus is free software: you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 3 as
  * published by the Free Software Foundation.
  *
  * Adblock Plus is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
@@ skipping 222 matching lines @@
       if (domain != "")
         knownExceptionDomains.add(domain);
     }
   }
 
   // If this is the first exception for a previously unconditionally applied
   // element hiding selector we need to take care to update the lookups.
   let unconditionalFilterForSelector = filterBySelector.get(selector);
   if (unconditionalFilterForSelector)
   {
-    addToFiltersByDomain(Filter.fromText(unconditionalFilterForSelector));
+    addToFiltersByDomain(Filter.fromText(unconditionalFilterForSelector,
+                                         false));
     filterBySelector.delete(selector);
     unconditionalSelectors = null;
     defaultStyleSheet = null;
   }
 });
 
 /**
  * Container for element hiding filters
  * @class
  */
@@ skipping 222 matching lines @@
 {
   let styleSheet = "";
 
   for (let selectorGroup of splitSelectors(selectors))
     styleSheet += createRule(selectorGroup);
 
   return styleSheet;
 }
 
 exports.createStyleSheet = createStyleSheet;