_id based on UUID only generated when needed -> fix
other elements could serve as id as well ->implement hashing e.g. on title element
(from redmine: issue id 1301, created on 2019-05-14tgradl, closed on 2019-05-18)
- Relations:
- parent #1299
other elements could serve as id as well ->implement hashing e.g. on title element
(from redmine: issue id 1301, created on 2019-05-14tgradl, closed on 2019-05-18)