fix(listing): Fix base handling to fix server copy/paste

The listing of serverService was conflicting with the one from
 simpleManagement, creating a bug when copy/pasting.

issue #5739

include/class_listing.inc

@@ -650,8 +650,8 @@ class listing
     $this->base = $base;
     if ($this->baseMode) {
       $this->baseSelector->setBase($this->base);
+      session::global_set('CurrentMainBase', $this->base);
     }
-    session::global_set('CurrentMainBase', $this->base);
   }
 
   function tryAndSetBase($base)