Check profile->update() result against false exactly; we may legitimately get 0 back if no rows were changed. DB objects normally would return true, but the comparisons aren't 100% reliable when we've got numbers which could be ints or strings or floats.

Caused failures saving profile settings with Geonames plugin enabled; the lat/lon/id fields would get re-set with freshly looked up values which no longer matched the previous values as far as the data object could tell, but which saved as the same ol' numbers.

actions/profilesettings.php

@@ -323,7 +323,7 @@ class ProfilesettingsAction extends AccountSettingsAction
 
             $result = $profile->update($orig_profile);
 
-            if (!$result) {
+            if ($result === false) {
                 common_log_db_error($profile, 'UPDATE', __FILE__);
                 $this->serverError(_('Couldn\'t save profile.'));
                 return;