Currently we're seeing that `failed` prebuild instances' status is override by newer instance updates lagging that state ([ref](https://github.com/gitpod-io/gitpod/issues/8096#issuecomment-1058175304)). While [this is a bug](https://github.com/gitpod-io/gitpod/issues/8096#issuecomment-1059046204), we should be failsafe here, and basically: - never overwrite the `failed` condition - add additional logging for unexpected updates - accept and forward `ws-manager` `version` field