p:template question/issue - attributes in text content

I just ran into a bit with attributes in text content via p:template.

The note says:

"In text content, an expression that selects nodes will cause those nodes
to be copied into the template document."

Yet, an attribute cannot be copied as such.

In Calabash, I get an empty string.  I was expecting the node's string
value.

It appears we are rather silent on what should happen.

-- 
--Alex Milowski
"The excellence of grammar as a guide is proportional to the paucity of the
inflexions, i.e. to the degree of analysis effected by the language
considered."

Bertrand Russell in a footnote of Principles of Mathematics