Show a search/loading graphic on linked/lookup fields such as "Share address with" and "Current Employer"

It would be great if the lookup fields such as "Share Address with" and "Current Employer" showed some indication that they were working when I type stuff in (in the same way that the main search box in the top-left does).

For example, if I go to a Bob Smith's contact record, and I want to share his address with Jane Smith, if I click the box to say "Share Address With..." and then type "Smith, Jane", there is no indication that anything is actually going on under the hood. I just have to wait for the list to appear and assume the webpage is doing something. A little circle loading indicator such as the one in the upper-left hand corner would be nice (BTW... what is this loading symbol referred to as by programmers?)

Furthermore, once the user actually selects "Smith, Jane", for the shared address, it takes another few seconds to query the address for her. It would be useful to show a loading icon for that as it is collecting the addresses for that contact.