Alert UI annoyingly flashes as metadata is used

As we go beyond 50% metadata, the UI will show alerts in the console. Problem is, the alerts display non-stop, with no way to disable them, making use of the UI very hard. One has to constantly close the alert box.

Scenario:
Load system with many items, such that metadata is consumed.

Expected behavior:
Alert can be acknowledged and won't be displayed again as long as we're in the alert area. Obviously, if we exit the alert range and hit it again, we'd expect to see the alert again.

Observed behavior:
While workload is running, the alert box is always popping up. Incessantly. It cannot be stopped. Yes, I know I'm above 50% metadata, go away. No, really, please go away. GO!