In section 2.4 there is a paragraph that reads:

"If the initial template has an as attribute, then the result sequence of the initial template is checked against the required type in the same way as for any other template. If this result sequence is non-empty, then it is used to construct an implicit final result tree, following the rules described in 5.7.1 Constructing Complex Content:...."

The natural way to read this paragraph is to assume that the conditional "If the initial template has an as attribute..." applies to the whole paragraph, so that where there is no "as" attribute, the paragraph does not apply. However, this isn't the intended meaning: the conditional is intended to apply only to the first sentence. I suggest a rewording as follows:

<new>
The result sequence produced by evaluating the initial template is handled as follows:

1. If the initial template has an as attribute, then the result sequence is checked against the required type in the same way as for any other template.

2. If the result sequence is non-empty, then it is used to construct an implicit final result tree, following the rules described in 5.7.1 Constructing Complex Content:....
</new>