I expect /* */ (or //).
It seems that an indent function is not work, either.
Also incorrectly comments out PHP code, uses <!-- --> rather than // and /* */
There is a regression somewhere, I think a change introduced in rev 20563 is the cause
I can't reproduce this issue. With the move of svn repositories recently, I can't find the change made in 20563.
Missed the part about "in HTML", I'll take another look at this.
I still can't reproduce this. I believe the changes introduced in revision 23418 handle this situation. That change fixed some mode delegation issues so that the proper syntax highlighting and mode properties were applied correctly to script tags in html.