Assertion on unordered_fast_key_table_internal.h

An assertion is being issues by the server when providing a field list with a large number of fields. Reducing the number of fields returned does not cause the assertion.

I first noticed this issue when querying via the PHP driver but running an identical query in the shell produces the same result:

error:

Querying with 150 fields defined triggers the assertion. Query values of less (say, 100) do not. For my document it asserts at exactly 101 field values defined.