Search by tag and tag substring returns no results

[mrkvon]

Hello!

Bug

When I send REQ with #t: ['photography'], I receive plenty of results. But if I send #t: ['photography', 'photogr'], the results are empty. For some reason, the unmatched substring tag cancels matched full tag.

Sending REQ #t: ['photo', 'photography'] returns results with photo tag, results with both tags, but doesn't return results with photography only.

The same happened with #g tag (geohash).

Expected results

When I send REQ with #t: ['photography', 'photogr'], I would expect to receive events with ['t': 'photography'] tag.

Context

I tested and reproduced this issue against relays wss://relay.damus.io, wss://nostr.wine, wss://relayable.org with issues.
Tested against wss://lightningrelay.com which uses different software, without issues.

It looks like the issue is with this software, but I'm not sure.

Used nostr-tools to send the requests.

Thank you!