Programms (binaries or scripts) are not being killed during logout

Submitted by Maurizio Galli (MauG) @Mau-G

Assigned to Xfce Bug Triage

Link to original bug (#15368)

Description

It can be reproduced in both Xfce 4.12 and 4.13 with a "forever" script:

Autostart-file in XFCE: ~/.config/autostart/autorun.xxx.desktop

[Desktop Entry]
Comment[de_DE]=
Comment=
Exec=/home/`<user>`/forEver.sh
GenericName[de_DE]=
GenericName=
Icon=system-run
MimeType=
Name[de_DE]=
Name=
Path=
StartupNotify=true
Terminal=false
TerminalOptions=
Type=Application
X-DBUS-ServiceName=
X-DBUS-StartupType=
X-KDE-SubstituteUID=false
X-KDE-Username=

File forEver.sh :

#!/bin/bash
while true 
do
`<executable binary or script>` 
done

##########

After logout from XFCE this <executable binary or script> is still running.
For test: i used xclock as <executable binary or script>

Original bug report: https://bugzilla.suse.com/show_bug.cgi?id=1133876

Version: 4.12.0

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Related old issue involving xfconfd: https://bugzilla.xfce.org/show_bug.cgi?id=13445