Template selection does not work if non-localized template files doe not exist

Suppose we have an application in Polish language only. All of the templates are called <template-name>.pl_PL.vt and there are no equivalent non-localized templates called <template-name>.vt.

While looking for the template file a template called <template-name>.vt is sought. Because it does not exist a null value is returned. Then localized template is resolved upon found template object and because it (the object) does not exist an exception is thrown.