Merge pull request #6561 from opf/fix/28274/use-slug-to-identify-page

[28274] Use page slug to identify page on edit

app/views/wiki/edit.html.erb

@@ -30,7 +30,7 @@ See docs/COPYRIGHT.rdoc for more details.
 <% breadcrumb_paths(*(@page.ancestors.reverse.collect { |parent| link_to h(parent.breadcrumb_title), {id: parent, project_id: parent.project}} + [h(@page.breadcrumb_title)] )) %>
 <%= labelled_tabular_form_for @content,
                               as: :content,
-                              url: {action: 'update', id: @page.title.presence || @old_title},
+                              url: {action: 'update', id: @page.slug.presence || @old_title},
                               html: {method: :put, multipart: true, id: 'wiki_form'} do |f| %>
   <%= f.hidden_field :lock_version %>