filter posts_where

[hunk]

I am testing a plug-in in version 3.0-beta and posts_where filter is not working.

my code

add_filter('posts_where', array('RCCWP_Menu', 'FilterPostsPagesList'));

if you enter the function, but the query apparently took place before.

This filter has been replaced?

[hunk]

Update:

I have 3 filters that use posts_where, if two of them commented one (third) works correctly. but when two of them are uncommented do not properly filter

[scribu]

see #12723