fix polymer trace update logic

CHANGELOG.md

@@ -8,6 +8,7 @@ Note that since we don't clearly distinguish between a public and private interf
 
 - Remove pca transform from components ui focus (too distracting)
 - Fix artefacts with opaque outlines behind transparent objects
+- Fix polymer trace visual not updating
 
 ## [v3.31.1] - 2023-02-05
 

src/mol-repr/structure/visual/polymer-trace-mesh.ts

@@ -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 = state.info.secondaryStructureHash !== undefined;
+                if (state.info.secondaryStructureHash !== undefined) state.createGeometry = true;
                 state.info.secondaryStructureHash = secondaryStructureHash;
             }
         }