* [Issue #27379] Box cannot list the contents of folders that contain > 300000 files (undocumented API limitation).
- As a result of this limit, the chunk file organization has to change in order to avoid ever hitting it.
- Newly created drives will use the new organization by default.
- Legacy drives that can potentially require > 300000 chunks will be upgraded to the new chunk organization format.
- The upgrade is parallelized, but it may take a while because all of the chunks will need to be moved to
new folders.
- If an upgrade is interrupted (e.g. system shut down), it will resume from where it left off on the next drive
mount.
- A chunk reenumeration will take place after the organizational upgrade.