Services are always reloaded when dependencies are reloaded

[troglobit]

Background

Since 4d05bf9 all rdeps to a service are automatically marked as "dirty" if the service becomes dirty. This works well to handle the original case:

ospfd.conf:
    service [2345] <!pid/zebra> log ospfd -A 127.0.0.1 -u root -g root -- OSPF daemon

zebra.conf:
    service [2345] <!> log zebra -A 127.0.0.1 -u root -g root -- Zebra Routing daemon

If zebra.conf is changed, we stop both zebra and ospfd on initctl reload.

Issue

However, the following case causes restart of iitod when syslogd (from the sysklogd project) is marked dirty. syslogd handles reloading its .conf file on SIGHUP, and unlike the zebra case, all state is kept.

sysklogd.conf:
    service if:udevd nowarn env:-/etc/default/sysklogd <run/udevadm:5/success> \
            [S0123456789] syslogd -F $SYSLOGD_ARGS -- System log daemon

iitod.conf:
    service [S0123456789] <!pid/syslogd> iitod -- LED daemon

Since syslogd can handle itself properly, and the pid/syslogd condition is more of a system barrier (don't start before logging is up), it does not make sense to restart iitod or any service really that depends on syslogd.

This issue propose returning to the pre-2021 behavior where rdeps are paused (SIGSTOP'ed) while syslogd is reloaded and has reasserted its condition.