Ebean generating too many queries

Using Play 2.7 and Ebean plugin version 5.0.2.

Ebean is generating me 10s of transactions ending like this.

....
where t0.id = any(Array[10]={230430,230431,230432,230433,230434,230435,230436,230437,230438,230439});
where t0.id = any(Array[10]={230440,230441,230442,230443,230444,230445,230446,230447,230448,230449});
where t0.id = any(Array[10]={230450,230451,230452,230453,230454,230455,230456,230457,230458,230459});
where t0.id = any(Array[10]={230460,230461,230462,230463,230464,230465,230466,230467,230468,230469});
where t0.id = any(Array[10]={230470,230471,230472,230473,230474,230475,230476,230477,230478,230479});
...

I have set up configuration like following, but still batch size 10 items as one transaction. Do I need to configure something else?

public class EbeanStartupConfig implements ServerConfigStartup {
	public void onStart(ServerConfig serverConfig) {
		serverConfig.setQueryBatchSize(100);
		serverConfig.setLazyLoadBatchSize(100);
	}
}

Start with the EbeanStartupConfig.onStart example and trace how ServerConfig.setQueryBatchSize(100) and setLazyLoadBatchSize(100) are applied. Reproduce the reported batching with Play 2.7 and Ebean plugin 5.0.2, then identify why batches remain at 10. Done means the configured batch size is honored or the configuration requirement is clearly documented, with a regression test if the repository provides one.