Capabilitites/mod/tracker:resolve
From MoodleDocs
People who have the "resolve" capability are known as "resolvers". They are allowed to edit the ticket data sheet and change status of the ticket. Resolvers can be assigned a ticket and cannot change this assignation unless giving the ticket back to a manager.
Resolvers can edit an issue and change any information field in it. It may also write a conclusion article when solving the issue.
Resolvers automatically swithc a ticket to open when first viewing a new posted ticket.
A resolver can potentially be chosen in a list of designated developers.
