OpenSearch Version 2.3.0
Using copy_to parameter; copying a field value of type geo_point (in a nested document) to another mapped field of type geo_point at the document root fails. When we remove the referenced field mapping from the root, the copy_to succeeds. The source field is (in fact) of type geo_point and works very well in our geospatial queries.
Exception that occurs:
reason: failed to parse field [coordinates] of type [geo_point],
reason: geo_point expected