Responder por RjOllos na lista de discussão trac-users:
The loss of [ticket-workflow] is not expected behavior. What is expected behavior: when ticket-workflow is missing, Trac will prompt you to upgrade the environment, which then restores the default ticket-workflow section.
Trac normally changes trac.ini when an update is applied from the Admin pages, and that update needs to be stored in trac.ini rather than the database. Otherwise, Trac won't modify trac.ini. [...] plugins have access to trac.ini, so a plugin could inadvertently do something bad.
[...] you should probably upgrade to AccountManagerPlugin 0.4.4. See changelog and #10871 for more info.
https://trac-hacks.org/browser/accountmanagerplugin/tags/acct_mgr-0.4.4/changelog