From a8fcca13ee2342a707f30930398ccf0539a8546a Mon Sep 17 00:00:00 2001
From: Tim Edwards <tim@opencircuitdesign.com>
Date: Tue, 1 Jun 2021 10:25:34 -0400
Subject: [PATCH] Corrected an error in the implementation of the CIF
 "mask-hints" operator that failed to set cifplane to curplane before drawing
 into it.  This can cause the "mask-hints" layers to vanish, or worse, cause a
 segfault.

---
 VERSION      | 2 +-
 cif/CIFgen.c | 3 ++-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/VERSION b/VERSION
index cae37761..49b7564b 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-8.3.171
+8.3.172
diff --git a/cif/CIFgen.c b/cif/CIFgen.c
index db9f7609..da5875be 100644
--- a/cif/CIFgen.c
+++ b/cif/CIFgen.c
@@ -4896,13 +4896,14 @@ CIFGenLayer(op, area, cellDef, origDef, temps, hier, clientdata)
 			    TxError("%s:  Cannot read rectangle values.\n", propname);
 			    break;
 			}
+			cifPlane = curPlane;
 			cifScale = (CIFCurStyle) ? CIFCurStyle->cs_scaleFactor : 1;
 			bbox.r_xbot *= cifScale;
 			bbox.r_xtop *= cifScale;
 			bbox.r_ybot *= cifScale;
 			bbox.r_ytop *= cifScale;
 			cifScale = 1;
-			DBNMPaintPlane(cifPlane, CIF_SOLIDTYPE, &bbox,
+			DBNMPaintPlane(curPlane, CIF_SOLIDTYPE, &bbox,
 				CIFPaintTable, (PaintUndoInfo *)NULL);
 			for (j = 0; j < 4; j++)
 			{