EDIT

fix #8184 using NativeSelect instead of ListSelect to avoid circumvent a bug in the ListSelect which affects the Chrome browser

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

ref #8072 better null value handling in BadgeButton and cleaning up debug code

fix #8072 introducing component BadgeButton and harmonizing the blocking registration and validation problem buttons

fix #8069 removing all message hub related code from the Registration UI:

• Buttons
• Views & Components
• Spring configuration

ref #7977 registration items show inReferences of sections as citation

ref #7217 better geo coordinate validation and parsing error feedback by creating LongLatField