7bceadf844166e18631bbf022babaf83887d6956 Fix: If a column data type i…

…s null when it is sorted, it should be resolved. This could happen after data has been invalidated (e.g. after column reordering).

DataTables/ColReorder#90

Sync to source repo @7bceadf844166e18631bbf022babaf83887d6956

datatables.json

@@ -14,5 +14,5 @@
     ],
     "src-repo": "http://github.com/DataTables/DataTablesSrc",
     "last-tag": "2.2.1",
-    "last-sync": "11e67902670040579c9399abd88e22799fceb30c"
+    "last-sync": "7bceadf844166e18631bbf022babaf83887d6956"
 }