Fix

packages/effect-fc/src/SynchronizedForm.ts

@@ -150,10 +150,12 @@ export const make = Effect.fnUntraced(function* <A, I = A, R = never, TER = neve
     const validationFiberLens = Lens.fromSubscriptionRef(yield* SubscriptionRef.make(Option.none<Fiber.Fiber<A, ParseResult.ParseError>>()))
     const isCommittingLens = Lens.fromSubscriptionRef(yield* SubscriptionRef.make(false))
 
-    const initialEncodedValue = options.initialEncodedValue ?? (yield* Effect.flatMap(
-        Lens.get(options.target),
-        Schema.encode(options.schema, { errors: "all" }),
-    ))
+    const initialEncodedValue = options.initialEncodedValue !== undefined
+        ? options.initialEncodedValue
+        : yield* Effect.flatMap(
+            Lens.get(options.target),
+            Schema.encode(options.schema, { errors: "all" }),
+        )
 
     return new SynchronizedFormImpl(
         options.schema,