count() counts ROW values that are NULL

The manual says:

But ROW values or composite types that "are null" are counted, anyway. See:

*db<>fiddle [here](https://dbfiddle.uk/?rdbms=postgres_14&fiddle=7364f3f582322ac687b39c677826a074)*

Feels like a bug, but I cannot imagine how this would have slipped everybody's attention for so long. It should at least be documented. Maybe:

Computes the number of input rows in which the input value is not a plain NULL value. (Composite or ROW values count in any case - even if value IS NULL evaluates to true.)

Regards

Erwin