Comment 42 for bug 1598300

(iiro) "Did you look the cups log to make sure that it really is the same problem?"

Without any fixes I get these messages about 2 minutes after restarting cups and cupsd is no longer running:

I [09/Feb/2017:04:08:47 -0600] Printer sharing is off and there are no jobs pending, will restart on demand.
I [09/Feb/2017:04:08:47 -0600] Scheduler shutting down normally.

After installing the proposed updates or switching to BrowseLocalProtocols dnssd those messages go away and cupsd stays running and client print jobs don't fail with "Connection error: Transport endpoint is not connected."

(iiro) "but it's now too late to do anything"
Assuming there is absolutely no way to fix bug 1642966, why not switch "-l" to "-f" in /lib/systemd/system/cups.service as an official fix? Is that the only way to completely disable this buggy feature?