Editing an issue messes up project number

See Editing a case messes up project number:

I am using both the project module and the casetracker on the same site. Since the beginning I noticed editing issues or cases messes up the project id (pid), so I disallowed editing of these node types to prevent the problem from happening.
It is perfectly correct that there's a problem with the 'pid' in the form: the pid from the url_alias table (eg node/679 registered at pid 2053 before update) gets copied into the pid field of project_issues' or casetracker_case's pid field after update, and of course node/679 gets a new pid in url_alias.

Therefore I conclude that the problem lies in the mixing up of these pids upon submittal, like oadaeh remarked. I don't know what to do at present: patch both project and casetracker, or patch pathauto? project is a core module, or as good as, so I think we should contact dww too about this.

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