WARNING (MainThread) [homeassistant.helpers.service] Not passing an entity ID to a service to target all entities is deprecated. Use instead: entity_id: "all"

Home Assistant release with the issue:
0.86.1

Last working Home Assistant release (if known):
0.83.2?

Operating environment (Hass.io/Docker/Windows/etc.):
Hass.io

Component/platform:
don’t know

Description of problem:
I use climate platform, and even though I added entity_id to calls like generic_thermostat.set_temperature/set_mode, I can see the following in the log:

WARNING (MainThread) [homeassistant.helpers.service] Not passing an entity ID to a service to target all entities is deprecated. Use instead: entity_id: “all”

It is not very helpful as gives no information about the cause of it.
Would be great to make this warning more informative.