Confusion on datatypes with empty content

Hello,

While reading through the XForms 1.1 specification I became confused by the
language describing datatypes which allow empty content in section 5.2.7.
The second paragraph of the description seems to contradict the first
paragraph.  While the first paragraph says "The following XForms datatypes
are defined to allow either empty content or the content allowed by the
corresponding XML schema datatype" the second paragraph says "The indicated
XForms datatypes do not allow empty string content and some others already
accepted empty string data".

Gary F Stevens
Software Group - Emerging Standards
IBM/US/Raleigh-RTP