Comment # 1 on bug 1203847 from Franck Bui

In systemd.spec:

%postun                                                                         
# daemon-reload is implied by %%systemd_postun_with_restart                     
%systemd_postun_with_restart systemd-journald.service                           
%systemd_postun_with_restart systemd-timesyncd.service                          
# Avoid restarting logind until fixed upstream (issue #1163)

# rpm -q systemd
systemd-251.4-2.1.x86_64

# rpm -q --scripts systemd
[...]
postuninstall scriptlet (using /bin/sh):
# daemon-reload is implied by :
if [ -x /usr/bin/systemctl ]; then                                              
        /usr/bin/systemctl daemon-reload || :                                   
        if [ $1 -ge 1 ]; then                                                   
                # Package upgrade, not uninstall                                

        if [ -e /etc/sysconfig/services ]; then                                 
                DISABLE_RESTART_ON_UPDATE=                                      
                . /etc/sysconfig/services                                       
                case "$DISABLE_RESTART_ON_UPDATE" in                            
                yes|1)  ;;                                                      
                *)      /usr/bin/systemctl try-restart  || :                    
                esac                                                            
        fi                                                                      

        fi                                                                      
fi
[...]

Apparently rpmbuild (?) expanded "%%systemd_postun_with_restart" despite the
fact that '%systemd_postun_with_restart' (included in a comment) was escaped
(by a second '%').

@Michael, am I right in thinking that this issue belongs to rpmbuild ?