Question about WordBreak property rules

[Karl Williamson]

http://www.unicode.org/draft/reports/tr29/tr29.html#WB6
indicates that there should be no break between the first two letters in 
the sequence
Hebrew_Letter Single_Quote Hebrew_Letter.

However, rule 7a just below indicates that there should be no break 
between a Hebrew_Letter and a Single_Quote even if what follows is not a 
Hebrew_Letter.

This is not contradictory, but it is suspicious.  It makes me wonder if 
there is an error in the specification.  Assuming there is not, then 
rule 7a ought to be before current rule 6, which itself should be 
divided so that there isn't redundant specification of the Hebrew_Letter 
rules.