Same behavior in old upstream thus not a regression:

1. Go to https://we.phorge.it/diviner/query/all/
2. Click on any Method in the listed query results.
3. Get a 404 error.

For example, the method addFieldsToListViewItem links to the URI
https://we.phorge.it/book/dev/method/addFieldsToListViewItem/
but as every method, it is documented in a class under the URI
https://we.phorge.it/book/dev/class/PhabricatorCustomFieldList/#method/addFieldsToListViewItem

My initial assumption was that URIs of atoms get created in DivinerAtom::getURI() in https://we.phorge.it/source/phorge/browse/master/src/applications/diviner/atom/DivinerAtom.php$286 but running ./bin/diviner generate --clean made no difference (and I still have no clue where exactly that resulting URI is actually used).

Instead, the culprit seems to be purely in rendering (not in indexing) in DivinerLiveSymbol::getURI().

See also similar T15932: All file search results in Diviner are 404 URIs.

(For those diving into the code, note that context seems to be about namespaced code per unmerged https://secure.phabricator.com/D9791)