Ens config is run only once

lib/modules/ens/index.js

@@ -14,6 +14,7 @@ class ENS {
     this.namesConfig = embark.config.namesystemConfig;
     this.registration = this.namesConfig.register || {};
     this.embark = embark;
+    this.firstDeployDone = false;
 
     if (this.namesConfig === {} ||
       this.namesConfig.enabled !== true ||
@@ -34,6 +35,9 @@ class ENS {
   }
 
   setProviderAndRegisterDomains(cb) {
+    if(this.firstDeployDone) {
+      return cb();
+    }
     const self = this;
     async.parallel([
       function getENSRegistry(paraCb) {
@@ -78,6 +82,7 @@ class ENS {
         return cb();
       }
       self.registerConfigDomains(config, cb);
+      self.firstDeployDone = true;
     });
   }