As a part of the process to rollback to a stable timestamp, we walk through the local oplog to find all of the ops that will be rolled back and store information from each of these oplog entries, including the namespace the op belongs to. For any NamespaceString objects that we manually construct when walking this file, we should call NamespaceStringUtil::deserialize and pass the tenantId from the oplogEntry to it. Those places are:

• When constructing the NamespaceStrings for the to and from fields for renameCollection
• When constructing the NamespaceString for the collection we renamed and then dropped