Left anchored srs api queries don't complete on kiwi bugfest

Overview:
Steps to Reproduce:

1. Log into the API of Kiwi bugfest
2. Perform a left-anchored srs query of 035 or 005 like: { "fieldsSearchExpression": "035.a ^= '(jenn)'" }

Expected Results:

A complete JSON response with matching instance UUIDs is returned

Actual Results:

An incomplete JSON response is returned or in some cases a 500 error is returned.

Additional Information:

We tried to improve the performance of this search in https://issues.folio.org/browse/MODSOURCE-332 and saw improvement on the perf testing environment but it still has problems on the bugfest environment.

When using curl, this message is seen:
curl: (92) HTTP/2 stream 0 was not closed cleanly: INTERNAL_ERROR (err 2)

URL:
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