Fixed that values of custom fields are not kept in issues when copying a project (#13910).

git-svn-id: svn+ssh://rubyforge.org/var/svn/redmine/trunk@11843 e93f8b46-1217-0410-a6f0-8f06a7374b81

app/models/project.rb

@@ -848,6 +848,9 @@ class Project < ActiveRecord::Base
       new_issue = Issue.new
       new_issue.copy_from(issue, :subtasks => false, :link => false)
       new_issue.project = self
+      # Changing project resets the custom field values
+      # TODO: handle this in Issue#project=
+      new_issue.custom_field_values = issue.custom_field_values.inject({}) {|h,v| h[v.custom_field_id] = v.value; h}
       # Reassign fixed_versions by name, since names are unique per project
       if issue.fixed_version && issue.fixed_version.project == project
         new_issue.fixed_version = self.versions.detect {|v| v.name == issue.fixed_version.name}