Fix that queryfilters are being ignored by the parser

library/Icinga/Data/Db/TreeToSqlParser.php

@@ -193,8 +193,7 @@ class TreeToSqlParser
         if ($tree->root == null) {
             return;
         }
-        $tree->root = $tree->normalizeTree($tree->root);
-        $sql = $this->nodeToSqlQuery($tree->root);
+        $sql = $this->nodeToSqlQuery($tree->normalizeTree($tree->root));
 
         if ($this->filtersAggregate()) {
             $baseQuery->having($sql);

library/Icinga/Filter/Query/Tree.php

@@ -232,12 +232,12 @@ class Tree
         $node->left = $this->removeInvalidFilter($node->left, $filter);
         $node->right = $this->removeInvalidFilter($node->right, $filter);
 
-        if ($node->left && $node->right) {
+        if ($node->left || $node->right) {
+            if (!$node->left) {
+                $node->left = $node->right;
+                $node->right = null;
+            }
             return $node;
-        } elseif ($node->left) {
-            return $node->left;
-        } elseif ($node->right) {
-            return $node->right;
         }
 
         return null;

library/Icinga/Web/Widget/FilterBadgeRenderer.php

@@ -182,6 +182,6 @@ EOT;
             return '';
         }
         $this->buildBaseUrl();
-        return $this->nodeToBadge($this->tree->root);
+        return $this->nodeToBadge(Tree::normalizeTree($this->tree->root));
     }
 }