CronJobLogListener - already register

I'm setting up Hybris 6.3.0.2 with the recipe "platform_only". When the server is starting I can see this error on the logs:

Log listener de.hybris.platform.cronjob.jalo.CronJobLogListener@4fe06697 already registered! java.lang.Exception: Stack trace at java.lang.Thread.dumpStack(Thread.java:1333) at de.hybris.platform.util.logging.HybrisLogger.addListener(HybrisLogger.java:205) at de.hybris.platform.cronjob.jalo.CronJobManager.init(CronJobManager.java:196) at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

Tenant listener de.hybris.platform.cronjob.jalo.CronJobManager$CronJobTenantListener@20872a15 already registered!

I have checked Hybris 6.3.0.1 and this error not happen

Can anyone tell me the reason of this error?

Thanks