Merge remote-tracking branch 'origin/form' into form

www/form/app-form.less

@@ -513,6 +513,9 @@
         }
     }
 
+    .cp-form-type-poll-container {
+        overflow: auto;
+    }
     .cp-form-type-poll {
         display: inline-flex;
         flex-flow: column;

www/form/inner.js

@@ -1443,7 +1443,7 @@ define([
                 addLine.unshift(h('div.cp-poll-cell', nameInput));
                 lines.push(h('div', addLine));
 
-                var tag = h('div', h('div.cp-form-type-poll', lines));
+                var tag = h('div.cp-form-type-poll-container', h('div.cp-form-type-poll', lines));
                 var $tag = $(tag);
 
                 var cursorGetter;