When defaultFieldMode: 'read' is set, nulled values are not distinguishable from empty strings.

[phifa]

If a field is set to text({ db: { isNullable: true } }), and for the schema itemView: { defaultFieldMode: 'read', }, is active, then the view does not make it clear, if en empty string is set or null.

if defaultFieldMode is not set to read, then you see if the value is actually null:

Expected behaviour: Show null if null is in the database.