Parsing HTML wrong behaviour

I saw that all examples attach an "errors" property to an istance of a viewModel but I have a generic class which extends ViewModel

`Emi.G.Masters = kb.ViewModel.extend({...`

I have a viewModel with two observable. To check parseInputAttributes I set a required attribute in the javascript code and I used the HTML5 attribute "required" for the second one.

`this.title = ko.observable('').extend({required: true});`
`this.description = ko.observable('');`

And then, an istance of my class

`Emi.G.vm = new Emi.G.Masters;`

Now, if I attach errors to the istance

`Emi.G.vm.errors = ko.validation.group(Emi.G.vm);`

and in the submit I checked errors like this

`submit: function(self, e) {`
` if (self.errors().length != 0) {`
` self.errors.showAllMessages();`
` return;`
` }`

all works but if I create a class method

`errors: function() {`
` var self = this;`
` return ko.validation.group(self);`
`},`

and

`submit: function(self, e) {`
` if (self.errors()().length != 0) {`
` self.errors().showAllMessages();`
` return;`
` }`

self.errors()().length is correctly 2 but error messages appears only in the title field, the one extended. And if I filled title with some string, self.errors()().length was 1 but no message appears.

Start by reproducing the two cases from the issue: assigning ko.validation.group(Emi.G.vm) to errors versus returning it from the class method. Compare the validation group count and displayed messages after changing title and description; done means both required fields report and clear errors consistently.

Written by the indexing model from the issue text.