LDEV-4696 Reintroduce a failsafe for missing branch activities setThere are normal situations where the collection is null. It needs to bechecked before attempting to add something.
LDEV-4757 Fix group overwriting with same UIIDGroups' UIIDs were not taken into account when calculating max UIID foropened LD. Sometimes an existing UIID got generated and it overwrote anexisting group.Also adjust new group naming.
LDEV-4746 Use QB option directly instead of MCQ optionKeeping a reference from MCQ option to QB option proved unnecessary andproblematic. It is sufficient for QB question to keep this reference.
LDEV-4746 Change search algorithm when migrating from tool to QBNow all QB questions with matching type are taken into account, not justones just migrated from a tool.