FIX : Do not include separate extrafields into export cause "separate"

extrafields aren't sql column

htdocs/core/extrafieldsinexport.inc.php

@@ -42,9 +42,11 @@ if ($resql)    // This can fail when class is used on old database (during migra
 				if (preg_match('/[a-z0-9_]+:[a-z0-9_]+:[a-z0-9_]+/', $tmp)) $typeFilter="List:".$tmp;
 				break;
 		}
+		if ($obj->type!='separate') {
 			$this->export_fields_array[$r][$fieldname]=$fieldlabel;
 			$this->export_TypeFields_array[$r][$fieldname]=$typeFilter;
 			$this->export_entities_array[$r][$fieldname]=$keyforelement;
 		}
 	}
+}
 // End add axtra fields