[css-writing-modes] text-combine-upright Applies to: non-replaced inline elements

"text-combine-upright"(tcy) applies to "non-replaced inline
elements"[1]. In my understanding, tcy shall not affect to "block
level element(e.g. p)".

<div style="text-combine-upright: digit">
  <div style="writing-mode: vertical-rl">
     <p> some text 6 </p>

In case of above contents, the character "6" does not upright. If the
string "some text 6" generate anonymous inline element, the character
"6" should be upright?

[1] http://dev.w3.org/csswg/css-writing-modes-3/#propdef-text-combine-upright

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shinsk@gmail.com - snsk