diff --git a/eeschema/lib_text.cpp b/eeschema/lib_text.cpp
index a6fda9cfd1..29b6a53b84 100644
--- a/eeschema/lib_text.cpp
+++ b/eeschema/lib_text.cpp
@@ -73,6 +73,7 @@ EDA_ITEM* LIB_TEXT::Clone() const
 {
     LIB_TEXT* newitem = new LIB_TEXT( nullptr );
 
+    newitem->m_parent    = m_parent;
     newitem->m_unit      = m_unit;
     newitem->m_convert   = m_convert;
     newitem->m_flags     = m_flags;
diff --git a/eeschema/tools/ee_tool_base.h b/eeschema/tools/ee_tool_base.h
index 0bbac77cb5..3ed5a33660 100644
--- a/eeschema/tools/ee_tool_base.h
+++ b/eeschema/tools/ee_tool_base.h
@@ -2,7 +2,7 @@
  * This program source code file is part of KiCad, a free EDA CAD application.
  *
  * Copyright (C) 2019 CERN
- * Copyright (C) 2019-2021 KiCad Developers, see AUTHORS.txt for contributors.
+ * Copyright (C) 2019-2022 KiCad Developers, see AUTHORS.txt for contributors.
  *
  * This program is free software; you can redistribute it and/or
  * modify it under the terms of the GNU General Public License
@@ -133,6 +133,8 @@ protected:
     ///< parents.
     void saveCopyInUndoList( EDA_ITEM* aItem, UNDO_REDO aType, bool aAppend = false )
     {
+        wxASSERT( aItem );
+
         KICAD_T itemType = aItem->Type();
         bool    selected = aItem->IsSelected();