Update MIGRATION.md

MIGRATION.md

@@ -61,6 +61,8 @@ extension Scan on FlutterBluePlus {
       onError: (e, stackTrace) => controller.addError(e, stackTrace),
     );
 
+    Future scanComplete = FlutterBluePlus.isScanning.skip(1).where((e) => e == false).first;
+
     FlutterBluePlus.startScan(
       withServices: withServices,
       timeout: timeout,
@@ -69,8 +71,6 @@ extension Scan on FlutterBluePlus {
       androidUsesFineLocation: androidUsesFineLocation,
     );
 
-    Future scanComplete = FlutterBluePlus.isScanning.where((e) => e == false).first;
-
     scanComplete.whenComplete(() {
       subscription.cancel();
       controller.close();
@@ -209,4 +209,4 @@ If your app uses `startScan.removeIfGone`, or your app continually checks the va
 
 ## 1.29.0
 
-* **[Breaking Change]** scanResults: do not clear results after `stopScan`. If you want results cleared, use `onScanResults` instead.
+* **[Breaking Change]** scanResults: do not clear results after `stopScan`. If you want results cleared, use `onScanResults` instead.