Quartz creating two triggers for one job

Question

I am using Quartz 2.3.0 with my Spring Boot project and I have one job that runs in the clustered environment every 45 minutes, below is my quartz.properties file content.

org.quartz.scheduler.instanceName = SSDIClusteredScheduler
org.quartz.scheduler.instanceId = AUTO

# thread-pool
org.quartz.threadPool.class=org.quartz.simpl.SimpleThreadPool
org.quartz.threadPool.threadCount=1
org.quartz.threadPool.threadsInheritContextClassLoaderOfInitializingThread=true

org.quartz.jobStore.isClustered = true
org.quartz.jobStore.clusterCheckinInterval = 20000


# Enable these properties for a JDBCJobStore using JobStoreTX
org.quartz.jobStore.class=org.quartz.impl.jdbcjobstore.JobStoreTX
org.quartz.jobStore.driverDelegateClass=org.quartz.impl.jdbcjobstore.StdJDBCDelegate
org.quartz.jobStore.dataSource=quartzDataSource
# Enable this property for JobStoreCMT
#org.quartz.jobStore.nonManagedTXDataSource=quartzDataSource


#============================================================================
# Configure Datasources  
#============================================================================

org.quartz.dataSource.quartzDataSource.driver=oracle.jdbc.driver.OracleDriver
org.quartz.dataSource.quartzDataSource.URL=${quartz_datasource_url}
org.quartz.dataSource.quartzDataSource.user=${quartz_datasource_username}
org.quartz.dataSource.quartzDataSource.maxConnections = 5
org.quartz.dataSource.quartzDataSource.validationQuery=select 0 from dual

And below is my code to create a trigger:

@Bean
    public Trigger someTrigger(@Qualifier("someJob") JobDetail jobDetail) {
        Trigger trigger = TriggerBuilder.newTrigger().withIdentity(jobDetail.getKey().getName()).forJob(jobDetail)
                .withSchedule(CronScheduleBuilder.cronSchedule(someCronExpression)).build();
        return trigger;
    }

But when I am running the job two triggers are getting created for one single job one with name quartzScheduler and another with my instance name i.e. SSDIClusteredScheduler for the same job and one trigger says that it is clustered and another is non-clustered.

I am not able to understand how this is happening I have explored a lot of documents but I am not able to find the cause of this.

Content of Triggers table

Content of Fired_Triggers table