Old, stale bug reports (bug triage)

[Felix Dietrich <felix.dietrich@sperrhaken.name>]

Looking through bugs in the Mnemosyne package I noticed a couple of
old and stale reports that could have already been closed.  E.g. the
discussion in report #783929 ends with the upstream developer saying that
Mnemosyne is working as intended and in the last message he simply
writes "Done." – yet, the report has no been closed.

What is the etiquette dealing with seemingly forgotten bug reports?
Should I send an email to the maintainer that asks him to have another
look at the report and decide for an appropriate action; may I close the
report myself or set e.g. the "wontfix" tag; something else?

--
Felix Dietrich