Gerrit administrators may configure change cleanups that are executed periodically.
This cleanup job automatically abandons open changes that have been inactive for a defined time.
Abandoning old inactive changes has the following advantages:
it signals change authors that changes are considered outdated
it keeps dashboards clean
it reduces the load on the server (for open changes the mergeability flag is recomputed whenever a change is merged)
If a change is still wanted it can be restored by clicking on the
Part of Gerrit Code Review