[ttml2] Clarify behavior in case of error in referential styling (#1112)

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

== Clarify behavior in case of error in referential styling ==
related to #1098


Please view or discuss this issue at https://github.com/w3c/ttml2/issues/1112 using your GitHub account

Received on Thursday, 6 June 2019 15:49:07 UTC