Issue 2279 - Close "Block element" dialog before opening a new one

include.postload.js

 /*
  * This file is part of Adblock Plus <https://adblockplus.org/>,
  * Copyright (C) 2006-2015 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 312 matching lines @@
   document.addEventListener("click", clickHide_mouseClick, true);
   document.addEventListener("keydown", clickHide_keyDown, true);
 
   ext.onExtensionUnloaded.addListener(clickHide_deactivate);
 }
 
 // Called when user has clicked on something and we are waiting for confirmation
 // on whether the user actually wants these filters
 function clickHide_rulesPending() {
   clickHide_activated = false;
+
+  if (clickHideFiltersDialog)
+  {
+    document.documentElement.removeChild(clickHideFiltersDialog);
+    clickHideFiltersDialog = null;
+  }
+
   document.removeEventListener("mousedown", clickHide_stopPropagation, true);
   document.removeEventListener("mouseup", clickHide_stopPropagation, true);
   document.removeEventListener("mouseenter", clickHide_stopPropagation, true);
   document.removeEventListener("mouseleave", clickHide_stopPropagation, true);
   document.removeEventListener("mouseover", clickHide_mouseOver, true);
   document.removeEventListener("mouseout", clickHide_mouseOut, true);
   document.removeEventListener("click", clickHide_mouseClick, true);
   document.removeEventListener("keydown", clickHide_keyDown, true);
 }
 
 function clickHide_deactivate()
 {
   clickHide_rulesPending();
 
-  if (clickHideFiltersDialog)
-  {
-    document.documentElement.removeChild(clickHideFiltersDialog);
-    clickHideFiltersDialog = null;
-  }
-
   clickHide_filters = null;
   lastRightClickEvent = null;
 
   if (currentElement)
   {
     currentElement.removeEventListener("contextmenu",  clickHide_elementClickHandler, true);
     unhighlightElements();
     unhighlightElement(currentElement);
     currentElement = null;
   }
@@ skipping 379 matching lines @@
           lastRightClickEventValid = false;
         else
           lastRightClickEvent = null;
         break;
     }
   });
 
   if (window == window.top)
     ext.backgroundPage.sendMessage({type: "report-html-page"});
 }