On 16.2 Beta 1, Dummy Switch set to stateful does not control other accessories when toggled.
1.) Setup a stateless Dummy Button
2.) Setup an automation that turns on another switch device when the Dummy Button is turned on
3.) Turn on the Dummy Button
Result: Notice that the Dummy Button turns on but the other switch device does not respond.
On 16.2 Beta 1, Dummy Switch set to stateful does not control other accessories when toggled.
1.) Setup a stateless Dummy Button 2.) Setup an automation that turns on another switch device when the Dummy Button is turned on 3.) Turn on the Dummy Button
Result: Notice that the Dummy Button turns on but the other switch device does not respond.