fix encoding and rb tree tests

src/Util/ID.js

@@ -10,7 +10,7 @@ export default class ID {
     return new ID(this.user, this.clock)
   }
   equals (id) {
-    return id !== null && id.user === this.user && id.clock === this.user
+    return id !== null && id.user === this.user && id.clock === this.clock
   }
   lessThan (id) {
     return this.user < id.user || (this.user === id.user && this.clock < id.clock)