fix(mdGesture): fix form submit via enter/go button on iOS (#3990) (#10189)

Author: radotzki

src/core/services/gesture/gesture.js

@@ -552,8 +552,10 @@ function attachToDocument( $mdGesture, $$MdGestureHandler ) {
 
   function clickHijacker(ev) {
     var isKeyClick = ev.clientX === 0 && ev.clientY === 0;
+    var isSubmitEvent = ev.target && ev.target.type === 'submit';
     if (!isKeyClick && !ev.$material && !ev.isIonicTap
-      && !isInputEventFromLabelClick(ev)) {
+      && !isInputEventFromLabelClick(ev)
+      && !isSubmitEvent) {
       ev.preventDefault();
       ev.stopPropagation();
       lastLabelClickPos = null;