Hi James,
Working towards an 0.20 release, I had a look at ticket 93 which was filed by you (from the wording I concluded that it must have been a regression).
Although it didn't turn out to be a regression: this issue must have been in our sources for a looong time, it turned out to be easy to fix: r12645 fixes this bug and its cousin in read-delimited-list, which caused the same error.
Anyway, the issue you reported has been fixed. Thanks for your report!
Bye,
Erik.