asset_server.load_folder never creates a LoadedFolder asset if _any_ asset contained errors while loading

[RyeToastyO]

Bevy version

0.12.0

What you did

Had a typo in a ron custom asset such that ron::de::from_bytes(&bytes)? returned an error

What went wrong

• what were you expecting?
  LoadedFolder asset would show up with most handles being in LoadState::Loaded and the one typo resulting in a LoadState::Failed
  Error messages would be output from failed load(s)

• what actually happened?
  LoadedFolder asset for the folder containing one broken asset and many valid assets was never created
  No errors are sent to the console

Additional information

I also noticed that LoadedFolder assets aren't created until all handles within them have completely reached LoadState::Loaded even when everything is going correctly, so you can't check for the progress of the individual assets being loaded. Seems related, but at the very least I think it needs to be created when all handles reach either LoadState::Loaded || LoadState::Failed

[RyeToastyO]

Looks like the error reporting portion of this is being tracked separately in #10515

[RyeToastyO]

Sorry, hit the wrong button on mobile