Edited to remove some erroneous results, but it’s perhaps by-the-by, since federation seems noticeably worse since 0.19. ‘Resolve_Object’ doesn’t seem to make any effort to retrieve a remote community that the instance hasn’t already heard of. e.g.:

curl --request GET --url ‘https://feddit.nl/api/v3/resolve_object?q=https://reddthat.com/c/dirtroads’ --header ‘accept: application/json’
gets
{“error”:“couldnt_find_object”}
every time

You can use the web-ui to force through a blank version, but a community without any posts isn’t much use.