Bug fix.

www/joinproject.php3

@@ -777,7 +777,7 @@ if (! $returning) {
     #
     # Certain of these values must be escaped or otherwise sanitized.
     #
-    $joining_uid       = ($USERSELECTUIDS ? null : $formfields[joining_uid]);
+    $joining_uid       = ($USERSELECTUIDS ? $formfields[joining_uid] : null);
     $usr_name          = addslashes($formfields[usr_name]);
     $usr_email         = $formfields[usr_email];
     $password1         = $formfields[password1];

www/newproject.php3

@@ -950,7 +950,7 @@ if (count($errors)) {
 if (!$returning) {
     $proj_head_uid     = (($USERSELECTUIDS ||
 			   $FirstInitState == "createproject") ?
-			  null : $formfields[proj_head_uid]);
+			  $formfields[proj_head_uid] : null);
     $usr_title         = addslashes($formfields[usr_title]);
     $usr_name          = addslashes($formfields[usr_name]);
     $usr_affil         = addslashes($formfields[usr_affil]);