Index: app/models/issue.rb
<+>UTF-8
===================================================================
diff --git a/app/models/issue.rb b/app/models/issue.rb
--- a/app/models/issue.rb	(revision 41000:f7b4efce8b3f1efc6927a0355eef9b3ef644bc0b)
+++ b/app/models/issue.rb	(revision 41000+:f7b4efce8b3f+)
@@ -1059,7 +1059,7 @@
     statuses = []
     statuses += IssueStatus.new_statuses_allowed(
       initial_status,
-      user.admin ? Role.all.to_a : user.roles_for_project(project),
+      user.admin ? Role.all.select(&:consider_workflow?).to_a : user.roles_for_project(project),
       tracker,
       author == user,
       assignee_transitions_allowed