Description
More specifically, changing from a StringListProperty to a StringProperty (multiselect+relational storage to singleselect) always assumes that there is at least one selected value in the existing objects, which might not be true.
Attachments
Issue Links
- relates to
- 
                    XWIKI-11800 Cannot change a list property from multiple select to single select if there is an instance that has no value selected -         
- Closed
 
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