[ttml2] Pull Request: Do not extend #extent-length in defining #extent-measure (#846).

skynavga has just submitted a new pull request for https://github.com/w3c/ttml2:

== Do not extend #extent-length in defining #extent-measure (#846). ==
Closes #846.

See https://github.com/w3c/ttml2/pull/849

Received on Thursday, 21 June 2018 17:24:10 UTC