Index: trunk/src/draw_composite.c
===================================================================
--- trunk/src/draw_composite.c	(revision 8736)
+++ trunk/src/draw_composite.c	(revision 8737)
@@ -126,7 +126,7 @@
 		int want_add;
 		l = pcb_get_layer(ctx->grp->lid[n]);
 
-		want_add = !(l->comb & PCB_LYC_SUB);
+		want_add = ctx->thin || !(l->comb & PCB_LYC_SUB);
 		if (want_add != adding) {
 			if (want_add)
 				comp_start_add(ctx);