[wellwell/interchange6] Don't use session id as username.

commit 6f165aad44bfb62178d679bea407711a95adc346
Author: Stefan Hornburg (Racke) <[email protected]>
Date:   Sat Mar 4 08:54:07 2017 +0100

    Don't use session id as username.

 lib/WellWell/DatabaseCart.pm |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
---
diff --git a/lib/WellWell/DatabaseCart.pm b/lib/WellWell/DatabaseCart.pm
index f6184eb..ba5fb52 100644
--- a/lib/WellWell/DatabaseCart.pm
+++ b/lib/WellWell/DatabaseCart.pm
@@ -42,7 +42,7 @@ sub cart_hook {
 		$cartname = $Vend::Cfg->{DatabaseCart};
 	}
 
-    my $uid = $Vend::Session->{username} || $Vend::Session->{id};
+    my $uid = $Vend::Session->{username};
 	$cart = get_cart_by_name($cartname, 'cart', $uid, 1);
 	
 	if ($op eq 'add') {