[pdftex] threads and named identifiers

[Han The Thanh]

> The manual says: Treads with same identifiers (spread across the document)
> will be joined together. 
> But this just works using numbered identifiers (<numid> --> num <integer>).
> Using named identifiers (<nameid> --> name <general text>) _all_ threads are
> joined together independent of their names.
> See the example below.
> 
> Am I doing something wrong or is this a bug?

this is a bug of named threads, which was reported by Koala a few months
ago. Please update your pdftex.

Thanh