Correction of TagTable.php conflict

Author: obuisard

administrator/components/com_tags/src/Table/TagTable.php

@@ -191,7 +191,10 @@ public function store($updateNulls = true)
         // Verify that the alias is unique
         $table = new static($this->getDbo());
 
-        if ($table->load(array('alias' => $this->alias)) && ($table->id != $this->id || $this->id == 0)) {
+        if (
+            $table->load(array('alias' => $this->alias, 'parent_id' => (int) $this->parent_id))
+            && ($table->id != $this->id || $this->id == 0)
+        ) {
             // Is the existing tag trashed?
             $this->setError(Text::_('COM_TAGS_ERROR_UNIQUE_ALIAS'));