- visit the `/config/` page: it musdoes it worked before? it still works now
- install an old git version: it must still workvisit the `/config/` page without `/etc/gitconfig`: you may still see "Unknown" as version - but, you finally get something in the log (instead of nothing)
- install a recent git version with `safe` mechanisms (assuming that your webserver is run
by www-data, and the repo is owned by root or other safe different users, now you should get
some errors in the error log,visit the `/config/` page after following your log messages: now you should see the library versions! instead of a silent suppresion. yeeh