minor fix

Former-commit-id: 1ccd9e446645362fb9b305a699527c5aa2c20369

pandora_console/include/class/NetworkMap.class.php

@@ -1980,6 +1980,7 @@ class NetworkMap
                 $i++;
             }
 
+            if (!$this->relations) {
                 // Search for relations.
                 foreach ($this->nodes as $k => $item) {
                     $target = $this->calculateRelations($k);
@@ -2007,7 +2008,11 @@ class NetworkMap
                         }
                     }
                 }
+            } else {
+                $edges = $this->relations;
+            }
 
+            if (is_array($edges)) {
                 foreach ($edges as $rel) {
                     $graph .= $this->createDotEdge(
                         [
@@ -2016,6 +2021,9 @@ class NetworkMap
                         ]
                     );
                 }
+            } else {
+                $edges = [];
+            }
 
             if (isset($this->noPandoraNode) === false
                 || $this->noPandoraNode == false