8452a1e1e7489a425dae7eddbd8a572071485808 Fix: Error when the first ce…

…ll in a header contains a rowspan

https://datatables.net/forums/discussion/78933

Sync to source repo @8452a1e1e7489a425dae7eddbd8a572071485808

datatables.json

@@ -14,5 +14,5 @@
     ],
     "src-repo": "http://github.com/DataTables/ColReorder",
     "last-tag": "2.0.1",
-    "last-sync": "23fb4c6564a77111d65125827a81806622fdcd36"
+    "last-sync": "8452a1e1e7489a425dae7eddbd8a572071485808"
 }