Value returned from a function is not checked for errors before being used

Defect 73038 (STATIC_C)
Checker CHECKED_RETURN (subcategory none)
File: /src/mongo/db/query/plan_executor.cpp
Function mongo::PlanExecutor::getNextImpl(mongo::Snapshotted<mongo::BSONObj> *, mongo::RecordId *)
/src/mongo/db/query/plan_executor.cpp, line: 372
Calling "yield" without checking return value (as is done elsewhere 2 out of 4 times).

                _yieldPolicy->yield(fetcher.get());