EDIT

ref #7106 refactoring CdmStore in turn of changed CdmRepository.getSession()

• CdmStore as Spring bean
• CdmStore managed transactions and sessions properly

ref #7106 using new CdmRepository.clearSession() method

Merge branch 'hotfix/5.5.2' into develop

ref #8162 adapt vaadin to new term package

ref #8160 CdmBeanItemContainerFactory as service bean to load entities only in readyOnly transactions to avoid unintendet flushing

ref #3560

fixing probelm with unchecked optional

fix #8097 inReference field required for section reference types

ref #8107 getFieldGroup() returns Optional to avoid NPEs and logging errors before rethrowing as PopupEditorException

fix #8090 fixing missing inProceedings label in reference editor