previewHotReloadOnSaveWatcher triggers Hot Reload requests during builds, which can result in errors #5541
Description
See flutter/flutter#169391 (comment) for some context.
If you enable this setting, during the launch of an app we send Hot Reload requests, and they're so early that it appears to stop the app from launching:
We should skip sending any Hot Reload requests to debug sessions that are not fully started.