@@ -575,7 +575,8 @@ export const makeEnvironmentThreadState = Effect.fn("EnvironmentThreadState.make
           if (applied._tag !== "noop") result = applied;
           if (applied._tag === "delete") break;
         }
-        return [result, { ...current, sequence }];
+        // A batch that changed nothing keeps its state object, so readers do not re-render.
+        return [result, result._tag === "noop" ? current : { ...current, sequence }];
       },
     );
Original file line number	Diff line number	Diff line change
`@@ -575,7 +575,8 @@ export const makeEnvironmentThreadState = Effect.fn("EnvironmentThreadState.make`
`575`	`575`	`if (applied._tag !== "noop") result = applied;`
`576`	`576`	`if (applied._tag === "delete") break;`
`577`	`577`	`}`
`578`		`- return [result, { ...current, sequence }];`
	`578`	`+ // A batch that changed nothing keeps its state object, so readers do not re-render.`
	`579`	`+ return [result, result._tag === "noop" ? current : { ...current, sequence }];`
`579`	`580`	`},`
`580`	`581`	`);`
`581`	`582`