User Organization Search stops working after changing "items per page" or "page" drop down. To reproduce this issue you will need 21+ organizations created.
1) Go to Control Panel -> Users -> Select Actions and edit any user.
2) Select user's Organization link.
3) Click the "Select" organization link.
4) Search works as expected when searching for an organization by name in the organizations popup.
5) However, if you set the "Items per Page" or change the "Page" dropdowns values, the search by organization name no longer works. Example change "Items per Page" to 75 or "Page" value to 2.