Special-case firing of SelectedItemsModified in FPEditor.

(The footprint itself is never selected, but we still
use this event for the properties manager, etc.)

Fixes https://gitlab.com/kicad/code/kicad/-/issues/22608

pcbnew/board_commit.cpp

@@ -271,7 +271,7 @@ void BOARD_COMMIT::Push( const wxString& aMessage, int aCommitFlags )
             }
         }
 
-        if( boardItem->IsSelected() )
+        if( boardItem->IsSelected() || ( m_isFootprintEditor && boardItem == board->GetFirstFootprint() ) )
             selectedModified = true;
     }