Index: _form.html.erb
===================================================================
--- _form.html.erb	(revision 17456)
+++ _form.html.erb	(working copy)
@@ -15,7 +15,7 @@
                 :onchange => "updateIssueFrom('#{escape_javascript update_issue_form_path(@project, @issue)}', this)" %></p>
 <% end %>
 
-<% if @issue.safe_attribute?('tracker_id') || (@issue.persisted? && @issue.tracker_id_changed?) %>
+<% if @issue.safe_attribute?('tracker_id') || @issue.tracker_id_changed? %>
 <p><%= f.select :tracker_id, trackers_options_for_select(@issue), {:required => true},
                 :onchange => "updateIssueFrom('#{escape_javascript update_issue_form_path(@project, @issue)}', this)" %></p>
 <% end %>