adding a comment to explain r12084 (see #2234)

git-svn-id: http://svn.openlayers.org/trunk/openlayers@12085 dc9f47b5-9b13-0410-9fdd-eb0c1a62fdaf

lib/OpenLayers/Format/OWSCommon.js

@@ -66,6 +66,8 @@ OpenLayers.Format.OWSCommon = OpenLayers.Class(OpenLayers.Format.XML, {
             // remember version does not correspond to the OWS version
             // it corresponds to the WMS/WFS/WCS etc. request version
             var uri = root.getAttribute("xmlns:ows");
+            // the above will fail if the namespace prefix is different than
+            // ows and if the namspace is declared on a different element
             if (uri && uri.substring(uri.lastIndexOf("/")+1) === "1.1") {
                 version ="1.1.0";
             }