In some cases TenantUser class prevents data from saving

[belyaev-andrey]

Environment

• Platform version: 7.2.4
• Addon version: 2.0.2

Description of the bug or enhancement

Checkout Petclinic app from https://github.com/cuba-platform/cuba-petclinic
Install Multitenancy Add-On
Create the database and run application

E.R. Application will start. All entities are not tenant-specific, so everything should work
A.R. Application fails on startup, method com.haulmont.sample.petclinic.core.VisitTestDataCreation#commit fails.

If we remove com.haulmont.addon.sdbmt.entity.TenantUser class from the add-on, the application starts.

Error:

20:08:30.796 ERROR c.h.c.c.s.AbstractWebAppContextLoader   - Error initializing application
java.lang.IllegalStateException: An attempt to save an entity with reference to some not persisted entity. All newly created entities must be saved in the same transaction. Put all these objects to the CommitContext before commit.
	at com.haulmont.cuba.core.sys.aop.CascadePersistExceptionAspect.changeCascadePersistMessage(CascadePersistExceptionAspect.java:38) ~[cuba-core-7.2.4.jar:7.2.4]
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:na]
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
	at java.base/java.lang.reflect.Method.invoke(Method.java:566) ~[na:na]
	at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethodWithGivenArgs(AbstractAspectJAdvice.java:644) ~[spring-aop-5.2.3.RELEASE.jar:5.2.3.RELEASE]
	at org.springframework.aop.aspectj.AbstractAspectJAdvice.invokeAdviceMethod(AbstractAspectJAdvice.java:626) ~[spring-aop-5.2.3.RELEASE.jar:5.2.3.RELEASE]
	at org.springframework.aop.aspectj.AspectJAfterThrowingAdvice.invoke(AspectJAfterThrowingAdvice.java:66) ~[spring-aop-5.2.3.RELEASE.jar:5.2.3.RELEASE]
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.2.3.RELEASE.jar:5.2.3.RELEASE]
	at org.springframework.aop.interceptor.ExposeInvocationInterceptor.invoke(ExposeInvocationInterceptor.java:95) ~[spring-aop-5.2.3.RELEASE.jar:5.2.3.RELEASE]
	at org.springframework.aop.framework.ReflectiveMethodInvocation.proceed(ReflectiveMethodInvocation.java:186) ~[spring-aop-5.2.3.RELEASE.jar:5.2.3.RELEASE]
	at org.springframework.aop.framework.JdkDynamicAopProxy.invoke(JdkDynamicAopProxy.java:212) ~[spring-aop-5.2.3.RELEASE.jar:5.2.3.RELEASE]
	at com.sun.proxy.$Proxy283.commit(Unknown Source) ~[na:na]
	at com.haulmont.cuba.core.app.DataManagerBean.commit(DataManagerBean.java:188) ~[cuba-core-7.2.4.jar:7.2.4]
	at com.haulmont.cuba.core.app.DataManagerBean.commit(DataManagerBean.java:220) ~[cuba-core-7.2.4.jar:7.2.4]
	at com.haulmont.sample.petclinic.core.VisitTestDataCreation.commit(VisitTestDataCreation.java:126) ~[petclinic-core-2.0.jar:na]
	at com.haulmont.sample.petclinic.core.VisitTestDataCreation.createData(VisitTestDataCreation.java:65) ~[petclinic-core-2.0.jar:na]
	at com.haulmont.sample.petclinic.core.TestdataOnApplicationStart.appStarted(TestdataOnApplicationStart.java:19) ~[petclinic-core-2.0.jar:na]
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:na]
	at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:na]
	at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:na]
	at java.base/java.lang.reflect.Method.invoke(Method.java:566) ~[na:an]
....
	Suppressed: java.lang.IllegalStateException: During synchronization a new object was found through a relationship that was not marked cascade PERSIST: com.haulmont.addon.sdbmt.entity.TenantUser-78c1b6c3-f217-dc2e-8af6-e1d502256dd0 [detached].
		at org.eclipse.persistence.internal.sessions.RepeatableWriteUnitOfWork.discoverUnregisteredNewObjects(RepeatableWriteUnitOfWork.java:315) ~[org.eclipse.persistence.core-2.7.3-6-cuba.jar:na]
		at org.eclipse.persistence.internal.sessions.UnitOfWorkImpl.calculateChanges(UnitOfWorkImpl.java:768) ~[org.eclipse.persistence.core-2.7.3-6-cuba.jar:na]
		at org.eclipse.persistence.internal.sessions.RepeatableWriteUnitOfWork.writeChanges(RepeatableWriteUnitOfWork.java:443) ~[org.eclipse.persistence.core-2.7.3-6-cuba.jar:na]
		at org.eclipse.persistence.internal.jpa.EntityManagerImpl.flush(EntityManagerImpl.java:974) ~[org.eclipse.persistence.jpa-2.7.3-6-cuba.jar:na]