after insert external link, reset to parent namespace

lib/scripts/linkwiz.js

@@ -261,9 +261,13 @@ var dw_linkwiz = {
         // reset the entry to the parent namespace
         var externallinkpattern = new RegExp('^((f|ht)tps?:)?//', 'i'),
             entry_value;
-        if(externallinkpattern.test(dw_linkwiz.$entry.val())) {
-            entry_value = ''; //reset whole external links
-        }else {
+        if (externallinkpattern.test(dw_linkwiz.$entry.val())) {
+            if (JSINFO.namespace) {
+                entry_value = JSINFO.namespace + ':';
+            } else {
+                entry_value = ''; //reset whole external links
+            }
+        } else {
             entry_value = dw_linkwiz.$entry.val().replace(/[^:]*$/, '')
         }
         dw_linkwiz.$entry.val(entry_value);