SubscribeToConfigurationUpdate does not work as expected #961
Description
Describe the bug
The subscription may notify [Number of configuration elements +1] times with each deployment that has a config value change. And at least once if there is no change.
To Reproduce
- Deploy a component that uses SubscribeToConfigurationUpdate and has more than 1
DeafultConfiguration - Revise the deployment
- [Optional] Make some changes to the configuration
- Check how many times the callback is called
Expected behavior
The callback for SubscribeToConfigurationUpdate should only be called once per change
Actual behavior
The callback for SubscribeToConfigurationUpdate is called more than once per change