BUG or strange behavior in saving quote and invoice - validation problem

I have found a problem in v1.4.8 with saving and validation in quote and invoice:

Saving in quote:

  • No validation works, you can save empty - no product name required
  • When entering product without name, the whole line dissapears

Saving in invoice:

  • The validation works on name
  • When having a new empty line that is not needed, you can’t save the invoice or delete the line

My suggestion is to work on name validation and have a delete button directly on new lines for both invoice and quote