GHSA-Q8MJ-M7CP-5Q26 qs has a remotely triggerable DoS: qs.stringify crashes with TypeError on null/undefined entries in comma-format arrays when encodeValuesOnly is set

Summary qs.stringify throws TypeError when called with arrayFormat: 'comma' and encodeValuesOnly: true on an array containing null or undefined. The throw is synchronous and not handled by any of qs's null-related options skipNulls, strictNullHandling. Details In the comma + encodeValuesOnly...