stack tag notifications do not use the new icon

[mortezadadgar]

Hey,
basically if the provided icon of a icon file is updated next notifications will use the old icon

How to reproduce

1. no change to config is needed
2. use a file as a example for icon file and run:

$ notify-send -h string:x-dunst-stack-tag:test -i tmp.jpg "123"

3. change the tmp.jpg file
4. as long as the last notification is visible on screen run the same command for sending notification and see the previous icon is shown

System information

dunst version: 1.12.2 (2025-03-05)
Linux distro: Archlinux

[bynect]

Hello thanks for pointing this out. Is this a regression or was this introduced in the new dunst version? Also does notify-send beahve differently than dunstify?

[mortezadadgar]

@bynect I don't know it's a regression just recently find out about stack tag and notify-send and dunstify behave similarly

[bynect]

I can reproduce this issue. it is very strange that it happens only when the stack tag is set. I will investigate

[bynect]

it seems to be caused by the way that tagged notifications are treated, which is different than normal duplicates

[bynect]

I found the cause. it is in the way icons are compared that checks just the path name. I will try to come up with a solution without compromising performance

[bynect]

if you want to try I changed the way duplicate icons are checked in #1473

[mnpqraven]

if you want to try I changed the way duplicate icons are checked in #1473

I'm trying this PR out and can confirm new icons are replaced correctly
this is the script being used