Xerces Update: Bugs found in impl/xpath/regex/RangeToken.java intersectRanges method

Regular expression intersection returns incorrect value when first range is longer than second range. Example below.

new RegularExpression("(?[b-d]&[a-r])"); -> returns [b-d] (Correct)
new RegularExpression("(?[a-r]&[b-d])"); -> returns [b-de-r] (Incorrect)