Use better check if restore is started

bubble-server/src/main/java/bubble/server/BubbleConfiguration.java

@@ -307,7 +307,7 @@ public class BubbleConfiguration extends PgRestServerConfiguration
                         {TAG_RESTORE_MODE, thisNetwork == null
                                            ? false
                                            : thisNetwork.getState().equals(BubbleNetworkState.restoring)
-                                             && !restoreService.getRestoreKeys().exists(thisNetwork.getUuid())},
+                                             && !restoreService.isRestoreStarted(thisNetwork.getUuid())},
                         {TAG_SSL_PORT, getDefaultSslPort()},
                         {TAG_SUPPORT, getSupport()},
                         {TAG_SECURITY_LEVELS, DeviceSecurityLevel.values()}

bubble-server/src/main/java/bubble/service/backup/RestoreService.java

@@ -35,6 +35,7 @@ import static org.cobbzilla.util.io.FileUtil.*;
 import static org.cobbzilla.util.json.JsonUtil.json;
 import static org.cobbzilla.util.security.CryptStream.BUFFER_SIZE;
 import static org.cobbzilla.wizard.cache.redis.RedisService.EX;
+import static org.cobbzilla.wizard.cache.redis.RedisService.LOCK_SUFFIX;
 
 @Service @Slf4j
 public class RestoreService {
@@ -64,6 +65,8 @@ public class RestoreService {
 
     public boolean isValidRestoreKey(String restoreKey) { return getRestoreKeys().exists(restoreKey); }
 
+    public boolean isRestoreStarted(String networkUuid) { return getRestoreKeys().exists(networkUuid + LOCK_SUFFIX); }
+
     public boolean restore(String restoreKey, BubbleBackup backup) {
         final String thisNodeUuid = configuration.getThisNode().getUuid();
         final String thisNetworkUuid = configuration.getThisNode().getNetwork();