Proposed resolution (August, 2013): Change the grammar in 11.9.3 [class.base.init] paragraph 1 as
follows:
mem-initializer-list:
The grammar in 11.9.3 [class.base.init] paragraph 1
for mem-initializer-list is incorrect: The ellipsis in the second production should be on
mem-initializer, not on mem-initializer-list.
mem-initializer-list:
mem-initializer ... opt
mem-initializer , mem-initializer-list ... opt