[Feature]: Force refresh continious aggregate

[munnik]

What problem does the new feature solve?

Data in a continuous aggregate can be a calculated by an user defined function. If that function contains an error one should be able to refresh the continuous aggregate for the period since that error is introduced. The underlying data does not change and TimescaleDB sees no reason to refresh.

What does the feature do?

Fix bad data in a continuous aggregate when a user definied function contained an error.

Implementation challenges

Dunno