bug multisite avatar pictures

I'm going to bring the following issue under your attention

http://drupal.org/node/132988

Currently the directory where you can store userpictures is restricted to a map within the directory you've selected for your files
(user_picture_path must reside within file_directory_path)

However, if you're working on a multisite, with a shared database and shared tables for the usernames, seperate settings for file_directory_temp and file_directory_path it is NOT POSSIBLE to have a common pictures directory, thus severely limiting multisite possibilities.

My request is to release the restriction for the user_picture_path, and make the variable in a similar way as done with the file_directory_path (sites/domain/files) and the file_directory_temp (sites/domain/tmp) variable so we can have for example sites/all/pictures (or something else) set for user_picture_path
(user_picture_path side-to-side with file_directory_path)