1. Go to Admin Tools -> Model Manager and create a new model
2. For the new Model, create a Custom Type.
3. For the new Custom Type, create a Property and set on Constraint: field, List of Values item; on List of Values: section add values that contain spaces at the end / start.
4. For the new Custom Type, add in the Layout Designer, the created Property.
5. Activate the model.
S1. Login to Share as admin and create a site.
S2. Create any document and open document description.
S3. Click on Change Type and choose the created Type.
S4. On the created Type property, pick one of the values
Actual Result: The changes are not saved - see the attachment.
Expected Result: The changes are saved.