[landsman]

Opening the edit form of a row with a nullable boolean column throws on load, before anything is clicked:

TypeError: Cannot read properties of undefined (reading 'toggle')
    at alterClass (functions.js)
    at HTMLSelectElement.functionChange (functions.js)
    at fire (functions.js)

To reproduce on PostgreSQL:

CREATE TABLE t (id int PRIMARY KEY, b boolean);
INSERT INTO t VALUES (1, true);

Open ?pgsql=…&edit=t&where[id]=1 and look at the console. New item throws too.

input() renders a boolean as <input type='hidden'> plus <input type='checkbox'>, both named fields[b], and the column being nullable gives it a function select, whose initial fire(…, 'change') runs functionChange(). There, this.form['fields[b]'] is a RadioNodeList, which has no classList, and alterClass() only guards against null. A NOT NULL boolean has no function select, so it doesn't throw.

The fix takes the checkbox out of the RadioNodeList. The test in pgsql.spec.js opens the edit form of the existing types table (its o boolean is nullable) and fails without the fix through expectNoErrors().