* #4851 - Infinite loop on repeat interval of 0
Notification will enter an infinite loop when the repeat interval is specified as zero and it is the last repeat configured. When this occurs avoid the infinite loop and log a warning message. Note: I encountered this issue when routing SMS to Twilio and quickly sent thousands of text messages.
* Update __init__.py
* Remove runtime check since configuration input is now blocked
* Tweak comment
Co-authored-by: Franck Nijhof <frenck@frenck.nl>