API extractor tokenizer(?) issues with Elasticsearch

[hey-sj]

hey all, i'm having a bit of trouble with retrieving results with hashtags for the OpenMeasures API. docs and interactive docs for reference. documentation seems to suggest that using a hashtag as is should work, but playing around with the query_type parameter + escaping the # symbol don't seem to work - getting results with the word but not the hashtag. GET and POST methods aren't allowed to see what's going on with the field mapping/analyzer so it looks like the # is getting stripped in some sort of tokenization process. OM leverages an Elasticsearch query_string_query which suggests this, but not sure if i can write over the analyzer via calls to the OM API with the given parameters. if not, i can just manually filter after the fact, but if there is some way to address this it would save time/api calls!