[PVE-User] Possible bug (Proxmox VE 4.0): Can't create container VM with a /8 address

[Dietmar Maurer]

> It looks like the field only clears if I put in at least two digits after
> the slash... But won't take a /08 either.

This is a bug - will be fixed with next upload:

https://git.proxmox.com/?p=pve-manager.git;a=commitdiff;h=11fcd080d24c4602aed52b140fad6cc964f45ef8