* [ArchWindow] Bug-fix Changing Sill _&_ SketchArch Support Sill Property 1. Bug found in https://github.com/FreeCAD/FreeCAD/pull/21005 (Allow changing Sill parameter) self.baseSill self.basePos : - need to be restored as 'initial' settings in onDocumentRestored() as corresponding codes in onChanged() does upon object creation 2. ArchWindow with SketchArch add-on to support above 'Allow changing Sill paramemeter' feature - Update to ArchWindow following groundworks in https://github.com/FreeCAD/FreeCAD/pull/21568/ * [ArchWindow] Bug-fix Changing Sill _&_ SketchArch Support Sill Property (rev)