I get a 500 error when I am using a custom field that is not enabled for all projects... This is the error from production log:

ActiveRecord::StatementInvalid (Mysql::Error: Subquery returns more than 1 row: SELECT sum(time_entries.hours) AS sum_hours, time_entries.project_id AS time_entries_project_id, (SELECT c.value FROM custom_values c WHERE c.custom_field_id = 2 AND c.customized_type = 'Issue' AND c.customized_id = issues.id) AS select_c_value_from_custom_values_c_where_c_custom_field_id_2_and_c_customized_type_issue_and_c_customized_id_issues_id, tyear AS tyear, tmonth AS tmonth, tweek AS tweek, spent_on AS spent_on FROM time_entries LEFT OUTER JOIN projects ON projects.id = time_entries.project_id LEFT OUTER JOIN issues ON issues.id = time_entries.issue_id WHERE (((projects.id = 16 OR (projects.lft > 13 AND projects.rgt < 18))) AND (((projects.status=1 AND projects.id IN (SELECT em.project_id FROM enabled_modules em WHERE em.name='time_tracking')) AND (projects.is_public = 1 OR projects.id IN (1,15,16,17) OR projects.id IN (1))))) GROUP BY time_entries.project_id,(SELECT c.value FROM custom_values c WHERE c.custom_field_id = 2 AND c.customized_type = 'Issue' AND c.customized_id = issues.id),tyear,tmonth,tweek,spent_on ):
lib/redmine/helpers/time_report.rb:55:in run'
lib/redmine/helpers/time_report.rb:36:ininitialize'
app/controllers/timelog_controller.rb:103:in new'
app/controllers/timelog_controller.rb:103:inreport'
config/initializers/mongrel_cluster_with_rails_211_fix.rb:62:in `dispatch_cgi'

Rendering /opt/redmine-1.4.1-0/apps/redmine/public/500.html (500 Internal Server Error)ctiveRecord::StatementInvalid (Mysql::Error: Subquery returns more than 1 row: SELECT sum(time_entries.hours) AS sum_hours, time_entries.project_id AS time_entries_project_id, (SELECT c.value FROM custom_values c WHERE c.custom_field_id = 2 AND c.customized_type = 'Issue' AND c.customized_id = issues.id) AS select_c_value_from_custom_values_c_where_c_custom_field_id_2_and_c_customized_type_issue_and_c_customized_id_issues_id, tyear AS tyear, tmonth AS tmonth, tweek AS tweek, spent_on AS spent_on FROM time_entries LEFT OUTER JOIN projects ON projects.id = time_entries.project_id LEFT OUTER JOIN issues ON issues.id = time_entries.issue_id WHERE (((projects.id = 16 OR (projects.lft > 13 AND projects.rgt < 18))) AND (((projects.status=1 AND projects.id IN (SELECT em.project_id FROM enabled_modules em WHERE em.name='time_tracking')) AND (projects.is_public = 1 OR projects.id IN (1,15,16,17) OR projects.id IN (1))))) GROUP BY time_entries.project_id,(SELECT c.value FROM custom_values c WHERE c.custom_field_id = 2 AND c.customized_type = 'Issue' AND c.customized_id = issues.id),tyear,tmonth,tweek,spent_on ):
lib/redmine/helpers/time_report.rb:55:in run'
lib/redmine/helpers/time_report.rb:36:ininitialize'
app/controllers/timelog_controller.rb:103:in new'
app/controllers/timelog_controller.rb:103:inreport'
config/initializers/mongrel_cluster_with_rails_211_fix.rb:62:in `dispatch_cgi'

Rendering /opt/redmine-1.4.1-0/apps/redmine/public/500.html (500 Internal Server Error)