Only look at the 'swappable' setting if an admin - otherwise, it

thinks mere users are trying to set their swappable bit to off. Since
it wasn't displayed on the mere-user form, it isn't in the form data
sent back, so it looks like they're turning it off.

www/editexp.php3

@@ -361,8 +361,8 @@ else {
 #
 # Swappable
 #
-if (!isset($formfields[swappable]) ||
-    strcmp($formfields[swappable], "1")) {
+if (ISADMIN($uid) && (!isset($formfields[swappable]) ||
+    strcmp($formfields[swappable], "1"))) {
     $formfields[swappable] = 0;
 
     if (!isset($formfields[noswap_reason]) ||