Bulk execution of task operations fails with ConstraintViolationException exception on the ORGANIZATIONALENTITY table

Issue

We are facing a ConstraintViolationException exception on the ORGANIZATIONALENTITY table if a user not present in the table while claiming the tasks in bulk with RHPAM 7:

WARN  [org.hibernate.engine.jdbc.spi.SqlExceptionHelper] (default task-1) SQL Error: -803, SQLState: 23505
ERROR [org.hibernate.engine.jdbc.spi.SqlExceptionHelper] (default task-1) DB2 SQL Error: SQLCODE=-803, SQLSTATE=23505, SQLERRMC=1;PAM.ORGANIZATIONALENTITY
WARN  [org.jbpm.services.task.persistence.TaskTransactionInterceptor] (default task-1) Could not commit session: javax.persistence.PersistenceException: org.hibernate.exception.ConstraintViolationException: could not execute statement
    at org.hibernate.internal.ExceptionConverterImpl.convert(ExceptionConverterImpl.java:154)
    at org.hibernate.internal.ExceptionConverterImpl.convert(ExceptionConverterImpl.java:181)
Caused by: com.ibm.db2.jcc.am.SqlIntegrityConstraintViolationException: DB2 SQL Error: SQLCODE=-803, SQLSTATE=23505, SQLERRMC=1;PAM.ORGANIZATIONALENTITY
    at com.ibm.db2.jcc.am.kd.a(kd.java:743)
    at com.ibm.db2.jcc.am.kd.a(kd.java:66)