[pve-devel] [PATCH manager] refactor HDEdit form change handler

[Dominik Csapak]

> I am not sure this is a good idea. This changes values when user switch storage,
> and this is not obvious when switching between file based storages.

what do you mean ? we already set the values every time  this handler is 
called, so no
changes here. i just wanted to make this part of the code more readable with
setting the values only once.

the only thing not so nice i just recognized, is that i always set the 
format to qcow2 and then
to the correct value (or leave it be), that i can redo in a v2, if desired