Aaf and dynamic attrs: a bug?

Hi!

I faced some issue while using it for dynamic attrs indexing/search.
Maybe I made something wrong. Here is test method. Everything works just
fine until last line http://pastie.caboo.se/66274 . Tested on both
stable and trunk of aaf and ferret 0.11.4.

the short version of code below:

Contact.acts_as_ferret :fields => [ :first_name ]
assert Contact.find(:first).respond_to?(:first_name_to_ferret)

assert_equal 1, Contact.find_by_contents(‘Y*’).total_hits
assert_equal 1, Contact.find_by_contents(‘first_name:Y*’).total_hits

Contact.aaf_index.close
FileUtils.rm_rf ‘index’

Contact.acts_as_ferret :fields => [ :first_name, :last_name ]
assert Contact.find(:first).respond_to?(:last_name_to_ferret)

assert_equal 1, Contact.find_by_contents(‘Y*’).total_hits
assert_equal 1, Contact.find_by_contents(‘first_name:Y*’).total_hits

assert_equal 1, Contact.find_by_contents(‘last_name:K*’).total_hits
assert_equal 1, Contact.find_by_contents(‘K*’).total_hits # assertion
fails here: get 0 instead of 1 !!

Maybe there is any better solution to add new fields to existing index?

Best regards,
Yury K.