Index: obj_arc.c
===================================================================
--- obj_arc.c	(revision 29148)
+++ obj_arc.c	(revision 29149)
@@ -600,6 +600,8 @@
 														Arc->Delta, Arc->Thickness, Arc->Clearance, pcb_flag_mask(Arc->Flags, PCB_FLAG_FOUND), pcb_true);
 	if (!arc)
 		return arc;
+	if (ctx->copy.keep_id)
+		arc->ID = Arc->ID;
 	pcb_arc_copy_meta(arc, Arc);
 	pcb_arc_invalidate_draw(Layer, arc);
 	pcb_undo_add_obj_to_create(PCB_OBJ_ARC, Layer, arc, arc);