msxml3/domdoc: Add a ref to the schema cache in copy_properties().

dlls/msxml3/domdoc.c

@@ -294,6 +294,8 @@ static domdoc_properties* copy_properties(domdoc_properties const* properties)
         pcopy->version = properties->version;
         pcopy->preserving = properties->preserving;
         pcopy->schemaCache = properties->schemaCache;
+        if (pcopy->schemaCache)
+            IXMLDOMSchemaCollection2_AddRef(pcopy->schemaCache);
         pcopy->XPath = properties->XPath;
         pcopy->selectNsStr_len = properties->selectNsStr_len;
         list_init( &pcopy->selectNsList );

dlls/msxml3/schema.c

@@ -38,7 +38,6 @@
 WINE_DEFAULT_DEBUG_CHANNEL(msxml);
 
 /* We use a chained hashtable, which can hold any number of schemas
- * TODO: versioned constructor
  * TODO: grow/shrink hashtable depending on load factor
  * TODO: implement read-only where appropriate
  */