Can't set value of location_providers_allowed using "adb shell settings put"

I'm trying to turn location on using the following commands:

adb shell settings put secure location_providers_allowed gps,wifi,network
adb reboot

But it's neither changing the value of the variable location_providers_allowed nor turning it on under Android Settings UI after the reboot.

I tried the same command to set other variables, like mock_location, and it worked without problems. Is this variable not possible to be changed?

Android version: M