From 2b9193331e74406286832253959213e8acd27398 Mon Sep 17 00:00:00 2001
From: Matthias Koefferlein <matthias@koefferlein.de>
Date: Sat, 25 Dec 2021 18:38:39 +0100
Subject: [PATCH] Small bugfix: no 'nil' layer generated when no layer is
 selected for a PCell

---
 src/edt/edt/edtPCellParametersPage.cc | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/edt/edt/edtPCellParametersPage.cc b/src/edt/edt/edtPCellParametersPage.cc
index 84b624ebe..000b59068 100644
--- a/src/edt/edt/edtPCellParametersPage.cc
+++ b/src/edt/edt/edtPCellParametersPage.cc
@@ -99,6 +99,8 @@ static void set_value (const db::PCellParameterDeclaration &p, QWidget *widget,
           db::LayerProperties lp;
           if (value.is_user<db::LayerProperties> ()) {
             lp = value.to_user<db::LayerProperties> ();
+          } else if (value.is_nil ()) {
+            //  empty LayerProperties
           } else {
             std::string s = value.to_string ();
             tl::Extractor ex (s.c_str ());