2012-09-27 15:15:06: Created issue 'do regions scroll their flowed content?' nickname owned by Mike Dolan on product DFXP 1.0, description 'TTML 1.0 is silent about the presentation processor behavior when text is flowed into a region and exceeds the region boundary due to <br>. One might infer from the silence and the clipping discussion that scrolling does not occur. However, the SDP-US Example 5 implies that regions scroll - the region is named "rollup" and the body text says "this could go on all day". If regions do not in fact scroll, then a "roll-up" example would need to be constructed very differently.
TTML 1.0 region behavior needs to be clarified when the flowed text exceeds the region boundary; and depending on the answer, the SDP-US Example 5 corrected.
' non-public [Mike Dolan]