Changes to fix #5524 and #5483

gistfile1.txt

diff --git a/app/assets/javascripts/mobile/mobile.js b/app/assets/javascripts/mobile/mobile.js
index 5cd873f..1bd3710 100644
--- a/app/assets/javascripts/mobile/mobile.js
+++ b/app/assets/javascripts/mobile/mobile.js
@@ -188,15 +188,17 @@ $(document).ready(function(){
 
   $(".stream").delegate("a.comment_action", "tap click", function(evt){
     evt.preventDefault();
-    var link = $(this);
+    var link = $(this),
+        commentForm = link.closest(".bottom_bar").find("form.new_comment");
 
-    if(link.hasClass('inactive')) {
+    if (link.hasClass('inactive') && !commentForm.length) {
       var parent = link.closest(".bottom_bar").first(),
           container = link.closest('.bottom_bar').find('.add_comment_bottom_link_container').first();
 
       $.ajax({
         url: link.attr('href'),
         beforeSend: function(){
+          link.removeClass('inactive');
           link.addClass('loading');
         },
         context: link,
@@ -212,6 +214,10 @@ $(document).ready(function(){
           parent.append(data);
 
           MBP.autogrow(textarea($(this)));
+        },
+        error: function() {
+          // make the pencil icon tap-able again
+          link.addClass('inactive');
         }
       });
     }