fix test testGetChildInstanceIdsOfProcessInstance, transaction were wrongly used in the test
BS-8671, fix transient data left operand handler must reevaluate transient data also on update method
BS-6711 : [6.2] searchProcessDeploymentInfos failed when looking for enabled process

- Add test
- Refactor tests
- Remove unused parameters
- Add javadoc
- Fix for Sonar
Merge branch '6.3.x' into 'BS-2683_DM_Compo'