Connman dnsproxy and dnsmasq - how not to break it during next upgrades?

Hi Everyone, yesterday I took an osmc upgrade on Rpi4. After this, my dnsmasq install failed to start.
I edited /etc/connman.prefs from dnsproxy=yes to dnsproxy=no, rebooted and everything was then fine. (Inspiration came from this post Connman(d) DNS and port 53 - #9 by HarryL).

What shall I do to make sure this will not break during next upgrades?

Thank you!

That change is persistent across updates.