Ability to remove "back to normal" in alerts

Currently I’m using alerts to notify things that happen in the DB that doesn’t have a trigger associated and I can check with pooling.

For example,
- When a company sets a day promotion (those promotions finish at the end of the day)
- Daily to check any negative rating

In those examples I want to inform when something happens without having to be inform when the query is back to normal.

I saw the code to implement this could be just as simple adding a condition here to ignore
back to normal notification redash/mattermost.py at master · getredash/redash · GitHub

I wonder if either I could get a workaround or we could get a feature for this.