[ttml2] Clarify that descendants of conditionally excluded elements cannot be included

nigelmegitt has just created a new issue for https://github.com/w3c/ttml2:

== Clarify that descendants of conditionally excluded elements cannot be included ==
See https://github.com/w3c/ttml2/pull/900/files/204ff46225830b23a2c6a4ca7f147cbdd68956d6..9c9a3efb6b2e938d098eff732dcdbca45f791943#r204399436

Need to clarify that the text in 8.2.1 condition (attribute):

> if an element specifies a `condition` attribute, and the its `<condition>` expression value evaluates to `false`, then the semantics of the element and its descendant elements must be ignored unless explicitly specified otherwise.

does _not_ mean that a descendant with a `condition` attribute which evaluates to `true` becomes conditionally included.

Also remove the qualifier "conditionally excluded" before "descendants" in the note introduced by #900 at the end of ยง8.2.1.


Please view or discuss this issue at https://github.com/w3c/ttml2/issues/926 using your GitHub account

Received on Monday, 23 July 2018 13:33:13 UTC