id summary reporter owner description type status component version severity resolution keywords cc stage has_patch needs_docs needs_tests needs_better_patch easy ui_ux 17333 Errors when reversing admin URLs when custom ModelAdmin doesn't provide model add/change URLs Ramiro Morales nobody "(Originally reported [comment:41:ticket:15294 here]) Commit r16857 introduced a backward incompatible behavior of the admin app's master index and per-app index views. The commit introduces changes in the template context building process that assume ''add'' and ''change'' permissions on models are always present when it is going to check for them. This fails with projects where these permissions might have been completely removed." Bug closed contrib.admin dev Release blocker fixed Accepted 1 0 0 0 0 0