fix processor params updating

src/app/processor/processor.component.ts

@@ -37,12 +37,16 @@ export class ProcessorComponent {
   paramsUpdated(params: any) {
     this.processor.update((processor) => {
       if (processor !== undefined) {
-        processor.params = params;
+        if (params != undefined){
           return {
             ...processor,
-          params: processor.params,
+            params: params,
           };
         }
+        return {
+          ...processor,
+        }
+      }
       return undefined;
     });
   }