I don't think is the same bug, the one you pointed is about an action on a one2many field, but this is an action on a wizard, and I have seen this only in this wizard, because other wizards actually updates the form.
I don't think is the same bug, the one you pointed is about an action on a one2many field, but this is an action on a wizard, and I have seen this only in this wizard, because other wizards actually updates the form.