message: fix unnecessary cartoon geometry recreation
diff: @@ -201,7 +201,7 @@ export function PolymerTraceVisual(materialId: number): UnitsVisual<PolymerTrace
  const secondaryStructureHash = SecondaryStructureProvider.get(newStructureGroup.structure).version;
  if ((state.info.secondaryStructureHash as number) !== secondaryStructureHash) {
  - state.createGeometry = true;
  + state.createGeometry = state.info.secondaryStructureHash !== undefined;
  state.info.secondaryStructureHash = secondaryStructureHash;
  }
  }
  