Similar to SERVER-41252 doing work not to fetch when we have `$expr` and `$eq`, we should not need to FETCH when we have GT/LT which generated tight bounds (of the same type).  So if the query was `$expr` with  field greater than a date and less than a date and we are using a non-multikey index, we do NOT need to FETCH since we will know from the index use with tight bounds that there is nothing left to `filter` during FETCH.

Related to SERVER-69680