I've noted the 'Delete' button in ***/Issues/IssueDetail.aspx does not completely delete the issue. Please replicate the problem by running script after a successfully delete.
use BugNet
Select * from BugNet_Issues where issueID=131XXX
Select * from BugNet_IssueVotes where issueID=131XXX
Select * from BugNet_IssuesView where issueID=131XXX
Thanks for all you do. BugNet a superb-
Comments: This is by design. When you delete an issue it does a logical delete , setting the disabled field to a value of 1. This will cause it to be excluded from queries and displaying in the UI but the data will still be available if necessary in the database.