Notify method not working correctly in 21.10 (impish)

[Gordon Lack]

The replaces_id parameter to org.freedesktop.Notifications.Notify no longer works correctly at 21.10.
It is OK on 21.04.

At 21.10 if a message with replaces_id == x ever times out then any further message sent with that replaces_id never gets shown. The timeout-over seems to become permanent for that replaces_id.

Example program to follow....

ProblemType: Bug
DistroRelease: Ubuntu 21.10
Package: dbus 1.12.20-2ubuntu2
ProcVersionSignature: Ubuntu 5.13.0-20.20-generic 5.13.14
Uname: Linux 5.13.0-20-generic x86_64
ApportVersion: 2.20.11-0ubuntu71
Architecture: amd64
CasperMD5CheckResult: unknown
CurrentDesktop: KDE
Date: Wed Nov 3 16:49:18 2021
InstallationDate: Installed on 2020-08-13 (447 days ago)
InstallationMedia: Kubuntu 20.04.1 LTS "Focal Fossa" - Release amd64 (20200731)
SourcePackage: dbus
UpgradeStatus: Upgraded to impish on 2021-10-17 (17 days ago)

[Gordon Lack (gordon-lack)]

This python program shows the problem

*=*=* Cut here *=*=*
#!/usr/bin/python3
# -*- coding: utf-8 -*-
#
from pydbus import SessionBus
from time import sleep

##### Global constants
#
item = "org.freedesktop.Notifications"
path = "/org/freedesktop/Notifications"
interface = "org.freedesktop.Notifications"
app_name = "NotifyTest"
icon = "/usr/share/icons/breeze/devices/64/camera-web.svg"
actions_list = []
hint = {}

bus = SessionBus()
notifications = bus.get('.Notifications')

##### Global variables
#
our_notify_id = 0
timeout = 3000 # ms
wait4 = 0 # s
body = "from NotifyTest.py"

while wait4 < 6:
    wait4 += 1
    message = "The next wait will be %ss" % wait4

# This should replace any previous notification still there...
# (can do this with notify-send command, but doing it in python allows
# us to use a fixed id for replacement).
#
    our_notify_id = notifications.Notify(app_name, our_notify_id, icon,
       message, body, actions_list, hint, timeout)
    print("our_notify_id:", our_notify_id)

# At Ubuntu 21.10 we have to change this to get the new message seen...
#
# our_notify_id += 1
    print(message)

    sleep(wait4)

print("Done")
*=*=* Cut here *=*=*

On 21.04 after the sleep exceeds the 3s timeout a new info message box is displayed.

On 21.10 after the sleep exceeds the 3s timeout nothing is shown.

[Gordon Lack (gordon-lack)]

This is still an issue in 23.04 (lunar)