This is an archived snapshot of W3C's public bugzilla bug tracker, decommissioned in April 2019. Please see the home page for more details.
ForExpr031 states "FLOWR expression that binds the same variable on both ends of "at"." It points to the section 3.8.1 For and Let clauses of the spec but that doesn't mention that this is an error. In fact, the only error case it mentions is about sequence type matching.
see bug #2692 David
Ah ok, I didn't expect test cases for not-yet specified behaviour.
We have started making changes to the test suite based on the resolutions of CR issues. These resolved issues are listed in our release notes.