Fix some project url building with identifiers

This commit was powered by @ulferts

app/controllers/projects_controller.rb

@@ -129,13 +129,15 @@ class ProjectsController < ApplicationController
   end
 
   def update
-    @project.safe_attributes = params[:project]
-    if validate_parent_id && @project.save
-      @project.set_allowed_parent!(params[:project]['parent_id']) if params[:project].has_key?('parent_id')
+    @altered_project = Project.find(@project.id)
+
+    @altered_project.safe_attributes = params[:project]
+    if validate_parent_id && @altered_project.save
+      @altered_project.set_allowed_parent!(params[:project]['parent_id']) if params[:project].has_key?('parent_id')
       respond_to do |format|
         format.html {
           flash[:notice] = l(:notice_successful_update)
-          redirect_to action: 'settings', id: @project
+          redirect_to action: 'settings', id: @altered_project
         }
       end
     else

app/views/projects/_edit.html.erb

@@ -26,9 +26,12 @@ Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
 See doc/COPYRIGHT.rdoc for more details.
 
 ++#%>
-<%= labelled_tabular_form_for @project do |f| %>
+
+<% @altered_project ||= @project %>
+
+<%= labelled_tabular_form_for @altered_project, url: project_path(@project) do |f| %>
   <%= render partial: 'form', locals: { f: f,
-                                        project: @project,
+                                        project: @altered_project,
                                         renderTypes: false } %>
 
   <%= f.button l(:button_save), class: 'button -highlight -with-icon icon-yes' %>

app/views/projects/_form.html.erb

@@ -27,7 +27,7 @@ See doc/COPYRIGHT.rdoc for more details.
 
 ++#%>
 
-<%= error_messages_for 'project' %>
+<%= error_messages_for project %>
 
 <!--[form:project]-->