Bug when using metadataQuery via REST API

[bflashcp3f]

Describe the bug
I am using the web interface (http://localhost:xxxx/api#/details/search) to test different queries via REST API on the local data (100 files).

Without the metadataQuery, the Odinson query (?<reagent> [entity=B-Reagent][entity=I-Reagent]*) <acts-on (?<operator> [entity=B-Action][entity=I-Action]*) works perfect.

However, after adding metadataQuery like catalyst contains 'carbonate', it stops working.

It seems that the bug java.lang.NullPointerException comes from line 121 of "OdinConcatQuery.scala" if (pq.size() > 0) {.

Any idea about where the problem is, or could you please give me some pointers about potential solutions? @BeckySharp @danebell @myedibleenso @reynoldsm88 Thanks!

[herongrove]

Thanks for your submission, @bflashcp3f! We will attempt to reproduce the issue and update you here.

[myedibleenso]

@bflashcp3f , what field type is catalysts in your metadata? For contains filters to work, you need to be using a ai.lum.odinson.TokensField (see this example doc in the test suite).