Do not hang onto previous elements

When using multi-label input or repeat commands, the previous element
should be deselected so that we can properly transform the current
element

Fixes https://gitlab.com/kicad/code/kicad/-/issues/21765

eeschema/tools/sch_drawing_tools.cpp

@@ -1996,6 +1996,7 @@ int SCH_DRAWING_TOOLS::TwoClickPlace( const TOOL_EVENT& aEvent )
                 item->AutoplaceFields( nullptr, AUTOPLACE_AUTO );
 
                 updatePreview();
+                m_selectionTool->ClearSelection( true );
                 m_selectionTool->AddItemToSel( item );
                 m_toolMgr->PostAction( ACTIONS::refreshPreview );