Guzzle error with blank Address field using Nominatim geocoding

[iparr]

When a user enters a space ( ) or a question mark (?) into the 'Full Address' field I get the following error:

GuzzleHttp\Exception\ClientException
Client error: `GET https://nominatim.openstreetmap.org/search?format=jsonv2&limit=1&accept-language=en&q=%20` resulted in a `400 Bad Request` response:
{"error":{"code":400,"message":"Nothing to search for."}}

I can of course code defensively around this in Twig on the front-end but this also appears in the dashboard which means it's difficult to put right as it becomes re-edit the field.

To fix this I switched the field type from 'Map' to plaintext, emptied the field and then put the field type back - but this feels a little dangerous! I realised that if I switch the Geocoding service to 'Google Maps' this is now editable again - but with an EU client I'm not sure this is ideal.

It would be nice for this (wonderful) plugin to work out-of-the-box without having to use an API key.

Note: I've used this setup for a long time and only recently came across this problem. I think Nominatim have changed how their system works and this plugin needs to take these errors being returned into account. If it just ignored them then I think we'd be fine but I dunno I'm not a plugin author I'm afraid.

I have tried this in a couple of environments:

• One local using Valet on Mac: (Craft Pro 5.7.1.0 / PHP 8.4.7 / MySQL 9.3 / Nginx 1.27.5)
• One production using a Ubuntu LEMP stack: (Craft Pro 5.6.17 / PHP 8.4.6 / MySQL 8.0.42 / Nginx 1.26.3)