Inconsistent count shown when search restricted by alphabetical pager

Sorry to report this just after 3.0 release, just had it reported by a client.

Replicated on drupal.demo.civicrm.org, 3.0 r23950:

(1) Find Contacts: Contact Type - 'Organization'

• 18 results.
  (2) Click 'C' on alphabetical pager
• 4 results.
  (3) Select records: All 4 records, Add Contacts to Group
• "Add Contacts to a Group" page shows "Number of selected contacts: 18". And if you go ahead, all 18 are added.

I see from CRM-3951 that the alphabetical pager is not seen as part of the search criteria. However it is presented as such in the search results header: it shows in the qill, e.g. " Contact Type - 'Organization' ...AND... Restricted to Contacts starting with: 'C' " and is reflected in the result count and in "Select records: All X records".

The client who reported the issue expected just the contacts beginning with her chosen letter to be added to her group. I can see arguments both ways but the current behaviour is clearly inconsistent: in the above example, "Select records: All X records" should select precisely X records - one can argue about whether X should be 4 or 18 here.

If the decision is that the alpha pager does not constitute part of the search criteria then perhaps "Showing only Contacts starting with: 'C'" would be clearer than "Restricted to Contacts starting with: 'C'".