modifiedDate parameter not working on /v1/dataset/search #750
Description
https://www.gbif.org/dataset/search?modified_date=2026-01-01,2026-01-10 returns all 119,000 datasets.
https://api.gbif.org/v1/dataset/search?modified_date=2026-01-01,* fails.
https://api.gbif.org/v1/dataset/search?modified_date=2026-01-01 does work.
The API docs say this accepts a range.
CC @peterdesmet.