Bug fixes to sync status

lib/account.dart

@@ -62,6 +62,7 @@ class SyncStatusState extends State<SyncStatusWidget> {
       if (simpleMode) Padding(padding: EdgeInsets.fromLTRB(0, 8, 0, 0), child: Text(s.simpleMode)),
       Observer(builder: (context) {
         final time = eta.eta;
+        final synced = syncStatus.isSynced();
         final syncedHeight = syncStatus.syncedHeight;
         final timestamp = syncStatus.timestamp?.timeAgo() ?? s.na;
         final latestHeight = syncStatus.latestHeight;
@@ -98,13 +99,13 @@ class SyncStatusState extends State<SyncStatusWidget> {
         final text =  latestHeight == 0 ? Text(s.disconnected)
             : syncedHeight == null
             ? Text(s.rescanNeeded)
-            : syncStatus.isSynced()
+            : synced
             ? Text('$syncedHeight', style: theme.textTheme.caption)
             : GestureDetector(
               onTap: () => setState(() { display += 1; }),
               child: createSyncStatus());
 
-        return TextButton(onPressed: () => _onSync(context), child: text);
+        return TextButton(onPressed: synced ? () => _onSync(context) : null, child: text);
       })
     ]);
   }

lib/store.dart

@@ -629,6 +629,7 @@ abstract class _SyncStatus with Store {
     eta.reset();
     showSnackBar(S.of(context).rescanRequested(height));
     syncedHeight = height;
+    timestamp = null;
     WarpApi.truncateData();
     WarpApi.rewindToHeight(height);
     await sync();

pubspec.yaml

@@ -15,7 +15,7 @@ publish_to: 'none' # Remove this line if you wish to publish to pub.dev
 # In iOS, build-name is used as CFBundleShortVersionString while build-number used as CFBundleVersion.
 # Read more about iOS versioning at
 # https://developer.apple.com/library/archive/documentation/General/Reference/InfoPlistKeyReference/Articles/CoreFoundationKeys.html
-version: 1.2.11+258
+version: 1.2.12+260
 
 environment:
   sdk: ">=2.12.0 <3.0.0"