[Bug]: Setting "delay when alert fires" has no apparent effect in Netdata Cloud

[raxod502]

Bug description

I'm seeing alerts send notifications even when they triggered only briefly, despite configuration that appears to suggest this shouldn't happen.

Expected behavior

I expect that it should be possible to prevent notifications for being sent from alerts that fire for only a very short duration of time. I expect that this should be controllable through the "delay when alert fires" setting, but if that setting is not the right one to use, the description of that setting should be updated so that it does not imply it's the right setting for this. I also expect that it should be relatively straightforward to find out what the right setting to use for this use case is, but that does not currently seem to be the case, as I've been unable to determine it based on any of the Netdata documentation.

Steps to reproduce

Configure alert delay for an alert. Trigger the alert condition and then clear the alert condition before the delay period has expired. A notification is still sent.

Screenshots

Here is an alert that fired only for less than a minute before recovering:

Here is the alert configuration for that alert, which specifies that it should not send a notification until it has been firing for five minutes:

Here is the notification that was sent anyway:

Error Logs

No response

Desktop

OS: Pop!_OS 22.04
Browser: Firefox 145.0

Additional context

No response