fixed geom parse where in Data_Source

SE/se-lib/Data_Source.php

@@ -593,7 +593,7 @@ class Data_Source {
 						{$valParts[3]} {$valParts[2]}
 					))";
 					// for mysql 5.6 use ST_Contains() @see http://dev.mysql.com/doc/refman/5.6/en/spatial-relation-functions.html
-					$sqlFilter = "Intersects(GeomFromText('{$bounds}'), GeomFromText(AsWKT({$tblPrefix}.`{$fldName}`)))=1";
+					$sqlFilter = "Intersects(GeomFromText('{$bounds}'), {$tblPrefix}.`{$fldName}`)=1";
 				}
 			}
 		}