Bundled Prometheus fails to install for Istio 1.5.1

Attempting to install the Prometheus resource for Istio 1.5.1 Operator fails. Here is the config which it fails on:
Screen Shot 2020-04-19 at 6.22.06 PM

Screen Shot 2020-04-19 at 6.22.21 PM

And here is the message reported from Operator:

Has anybody encountered this / any tips to resolve this? This breaks our ability to use 1.5.1…

Anybody encountering this issue, here is the solution: https://github.com/istio/istio/issues/23078