#379 Continuing case 333. Add new nested subnet only works for /24

[Viktor]

Using version 1.2 from git. When trying the new cool add new nested subnet function it only seems to work for available /24 nets.

Would be nice if if could have support for Nets down to /31.

[Viktor]

Seems to work on most subnets except a few, so probably we've added the subnet wrong somehow.

This can be closed.

Awesome work myha :)