That is, only nest them if their name matches the provided parent name. Otherwise do not nest them. Now this code creates a type with three properties a,b,c instead of two a,b:

/**
 * @typedef {Object} T
 * @param {string} a
 * @param {object} b
 * @param {string} c
 */

Note that this commit changes the behaviour of an incorrect typedef that contains both an @type child tag and @property child tags.

Previously, the @type would be incorrectly nested under a @property tag with type object, just like @property tags would be. Now, the @type tag causes the entire typedef to ignore the @property tags and treat the typedef as if it were an instance of the typedef-and-nested-type pattern:

/**
 * @typedef {Object} name
 * @type {{ the, actual, type }}
 */

Fixes #25072
Fixes #25118