SERVER-98453 introduced a new field _internalOutputSortKeyMetadata which is serialized into the query shape. This is problematic as the computation of the query shape hash deviates from the original query shape hash introduced in 8.0.4.
We should stop serializing this field when computing the query shape hash.

I have attached two showDebugQueryShape responses, one on 8.0 (debugQSH_withDocs_80.json) and one on master (debugQSH_withDocs.json), as well as the diff to illustrate the difference (queryShapeHashDiff.diff).