openproject/app/views/issues/_form_update.rhtml

<div class="attributes">
<div class="splitcontentleft">
<p><%= f.select :status_id, (@allowed_statuses.collect {|p| [p.name, p.id]}), :required => true %></p>
<p><%= f.select :assigned_to_id, (@issue.assignable_users.collect {|m| [m.name, m.id]}), :include_blank => true %></p>
</div>
<div class="splitcontentright">
<p><%= f.select :done_ratio, ((0..10).to_a.collect {|r| ["#{r*10} %", r*10] }) %></p>
<%= content_tag('p', f.select(:fixed_version_id, 
                          (@project.versions.sort.collect {|v| [v.name, v.id]}),
                          { :include_blank => true })) unless @project.versions.empty? %>
</div>
</div>