* Fixed issue with multi value.

* Made some refactorings after feedback from Torkel and Hugo.

* minor refactorings.

* changed so we don't make the current value to array if multi is false.

* added snapshot to contain v23.

* Fixed so we always use the correct type when setting value for multi/non-multi.

* added some more tests.

* added tests.

* some small adjustments after feedback