add BooleanFilterColumns

Author: Alexandra Nantel

lib/class.entryquerytextboxadapter.php

@@ -110,7 +110,7 @@ protected function filterSingle(EntryQuery $query, $filter)
         } elseif ($this->isFilterSQL($filter)) {
             return $this->createFilterSQL($filter, $this->getFilterColumns());
         } elseif ($this->isFilterBoolean($filter)) {
-            return $this->createFilterBoolean($filter, $this->getFilterColumns());
+            return $this->createFilterBoolean($filter, $this->getBooleanFilterColumns());
         } elseif ($this->isFilterContains($filter)) {
             return $this->createFilterContains($filter, $this->getFilterColumns());
         } elseif ($this->isFilterHandle($filter)) {
@@ -124,6 +124,11 @@ public function getHandleFilterColumns()
         return ['handle'];
     }
 
+    public function getBooleanFilterColumns()
+    {
+        return ['value'];
+    }
+
     public function getFilterColumns()
     {
         return ['value', 'handle'];