usage of average_home_autonomy in province scope.

[maxice8]

File: missions/SCA_Polish_Missions.txt

trigger = {
  stability = 3 
  poland_region = {
    type = all 
    NOT = { unrest = 1 } 
    num_of_times_improved = 3 
    NOT = { average_home_autonomy = 5 }
  }
}

Reported to Paradox here