Object creation and field adding fail in 6.1 RC

[Brice Muangkhot ສຸພາ ເມືອງໂຄຕ]

Hello,

I have installed the 6.1 RC and want to check if it is possible like in the 6.0.3 version to add a field or to create a new object:

1.Object creation
  -->Setting->Customization->Database Structure->Model

  A. You can access the "create" button but when you want to save, the error pop_pup message appears :
" the following fields are invalid:
  - model
"..

2. Field adding

In version 6.0.3, you can add another fields to a existing object, but here in the 6.1 version, it is not possible.

The same message above appears.

Please could take this bug into account.

Thanks

Brice