BUG #17886: Error disabling user triggers on a partitioned table

The following bug has been logged on the website:

Bug reference: 17886
Logged by: DzmitryH
Email address: jazz001319(at)gmail(dot)com
PostgreSQL version: 14.7
Operating system: Linux 883a37b156f7 5.15.0-52-generic #58-Ubuntu SM
Description:

sequence of steps:
1. clean install PostgreSQL 14.7
2. Create test database
3. Create partiton table and partitions (for example only default
partiton)
4. Create trigger
5. Disable user trigger on partitions

verbose step:
psql (14.7 (Debian 14.7-1.pgdg110+1))
Type "help" for help.

postgres=# \set VERBOSITY verbose
postgres=# create database testdb;
CREATE DATABASE
postgres=# CREATE TABLE IF NOT EXISTS public.test
(
id bigserial,
user_id bigint,
type text NOT NULL,
status text NOT NULL,
details jsonb,
created_timestamp timestamp with time zone NOT NULL DEFAULT 'now()',
modified_timestamp timestamp with time zone NOT NULL DEFAULT
'now()',
shard_id integer NOT NULL DEFAULT '1',
demo boolean NOT NULL,
CONSTRAINT test_pkey PRIMARY KEY (id, created_timestamp)
) PARTITION BY RANGE (created_timestamp);
CREATE TABLE
postgres=# CREATE TABLE public.test_def PARTITION OF public.test
DEFAULT;
CREATE TABLE
postgres=# CREATE OR REPLACE FUNCTION
public.update_last_modified_timestamp()
RETURNS trigger
LANGUAGE 'plpgsql'
COST 100
VOLATILE NOT LEAKPROOF
AS $BODY$
BEGIN
IF NEW != OLD
THEN
NEW.modified_timestamp := CURRENT_TIMESTAMP;
END IF;
RETURN NEW;
END;
$BODY$;
CREATE FUNCTION
postgres=# CREATE TRIGGER trigger_test
BEFORE UPDATE
ON public.test
FOR EACH ROW
EXECUTE FUNCTION public.update_last_modified_timestamp();
CREATE TRIGGER
postgres=# alter table public.test DISABLE TRIGGER USER;
ERROR: 42704: trigger "trigger_test" for table "test_def" does not exist
LOCATION: EnableDisableTriggerNew, trigger.c:1658

result:
postgres=# alter table public.test DISABLE TRIGGER USER;
ERROR: 42704: trigger "trigger_test" for table "test_def" does not exist
LOCATION: EnableDisableTriggerNew, trigger.c:1658

Expected Result (Postgresql 15.2 and 14.4 - fine):
testdb=> alter table public.test DISABLE TRIGGER USER;
ALTER TABLE