Added form names and select tag autocomplete off

To make select tags show selected option (FF bug)
https://stackoverflow.com/questions/1479233/why-doesnt-firefox-show-the-correct-default-select-option

app/views/sources/index.html.erb

@@ -13,8 +13,9 @@
   <h2><%= t ".heading_new_source" %></h2>
 
   <%= labelled_form_for @source,
-                        url: project_sources_path(@project),
-                        html: {id: 'source-form'} do |f| %>
+    url: project_sources_path(@project),
+    html: {id: 'source-add-form', name: 'source-add-form'} do |f| %>
+
     <%= render partial: 'sources/form', locals: {f: f} %>
     <%= submit_tag l(:button_create) %>
     <%= link_to l(:button_cancel), "#", onclick: '$("#add-source").hide(); return false;' %>