EDIT

fix #8090 fixing missing inProceedings label in reference editor

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

fix #8071 setting newly created inReference as value for inReference combobox

fix #8070 ReferenceEditor: reference type constraints for inreferences by current referenceType

ref #8039 preserving un-persisted registrations only when not persisted meanwhile

fix #8063 avoiding multiple representations problem by adding the the citation to the cache in case the registration is empty

ref #8059 using the cached registration data in case the reg is new and unpersisted

TODO comment for future refactoring