not expected query in paginate association

some thing like:

@project = Project.find(:first)

@project.tasks.paginate :page =>2, :per_page=>2

will bring 3 sqls as:

1. this is not expected

SELECT * FROM tasks WHERE (tasks.`project_id` = 5)

SELECT count(*) AS count_all FROM tasks WHERE (tasks.project_id = 5)

SELECT * FROM tasks WHERE (tasks.project_id = 5) LIMIT 2, 2

I fit this by :

1. open vendor/plugins/will_paginate/lib/will_paginate/finder.rb
2. in "def wp_count!(options, args, finder) "
3. replace below:：

if respond_to?(scoper = finder.sub(/^find/, 'with'))

send(scoper, &counter)

else

with_scope(:find => { :conditions => conditions }, &counter)

end

to ：

scoper = finder.sub(/^find/, 'with')

if scoper != 'with' && respond_to?(scoper)

send(scoper, &counter)

else

with_scope(:find => { :conditions => conditions }, &counter)

end