Fixed regression in IndexedRelationsImpl.replace return value.
The return value was always false which caused index query listeners to
never be fired upon index replace operations. This in turn caused
potentially invalidated query results to be returne for database
The regression was introduced in commit 702195f3 for release/1.28.0.
(cherry picked from commit 480b0e3c16a3958a21de00707b9957c422c21c88)