Saxon

An expression of the form (X castable as xs:ENTITIES) where xs:ENTITIES is a list type is compiled into a call on ListCastableFunction. The return type of this function is incorrect: in this case it is xs:ENTITY* rather than xs:boolean.

This causes a failure on the qt3 -> xslt3 conversion of test cbcl-castable-ENTITIES-001.xsl:

Warning at char 21 in xsl:when/@test on line 17 column 66 of cbcl-castable-ENTITIES-001.xsl:
  SXWN9000: In {$result = true()}: cannot compare xs:ENTITY to xs:boolean. The comparison
  can succeed only if the first operand is empty, and in that case will always be false
Static error on line 1 at column 9 in xsl:variable/@select on line 15 column 99 of cbcl-castable-ENTITIES-001.xsl:
  XPTY0004: Required item type of value of variable $result is xs:ENTITY; supplied value has
  item type xs:boolean