[entity edition] don't remove values from attribute cache on the repository side
This follows changesets 552de9f0c46d, 1527b012802f, 25da1e5c7c50 and 4ba11607d84a.
closes #2423719 ?
rql('SET X name "BoundaryConstraint" ''WHERE X is CWConstraintType, X name "BoundConstraint"')