From 78a8dfb9f85ea4e00907431492225f7d0ae8d537 Mon Sep 17 00:00:00 2001
From: vro <vro@opencascade.com>
Date: Mon, 15 Oct 2018 15:07:52 +0300
Subject: [PATCH] 0030215: Application Framework, TPrsStd_AISPresentation -
 Enable Lazy Presentation Updates

---
 src/TPrsStd/TPrsStd_AISPresentation.cxx |  4 ++--
 tests/bugs/caf/bug30215                 | 20 ++++++++++++++++++++
 2 files changed, 22 insertions(+), 2 deletions(-)
 create mode 100644 tests/bugs/caf/bug30215

diff --git a/src/TPrsStd/TPrsStd_AISPresentation.cxx b/src/TPrsStd/TPrsStd_AISPresentation.cxx
index e67391a013..75ba33bd20 100644
--- a/src/TPrsStd/TPrsStd_AISPresentation.cxx
+++ b/src/TPrsStd/TPrsStd_AISPresentation.cxx
@@ -943,7 +943,7 @@ void TPrsStd_AISPresentation::AISErase(const Standard_Boolean theIsRemove)
         if ( !anOwnContext.IsNull() && anOwnContext != aContext )
           anOwnContext->Remove(myAIS, Standard_False);
 
-        myAIS->SetToUpdate();
+        myAIS.Nullify();
       }
       else
       {
@@ -960,7 +960,7 @@ void TPrsStd_AISPresentation::AISErase(const Standard_Boolean theIsRemove)
         if ( !anOwnContext.IsNull() )
         {
           anOwnContext->Remove(myAIS, Standard_False);
-          myAIS->SetToUpdate();
+          myAIS.Nullify();
         }
       }
       else
diff --git a/tests/bugs/caf/bug30215 b/tests/bugs/caf/bug30215
new file mode 100644
index 0000000000..dac51e16f8
--- /dev/null
+++ b/tests/bugs/caf/bug30215
@@ -0,0 +1,20 @@
+puts "========="
+puts "OCC30215"
+puts "========="
+puts ""
+######################################################################################
+# Application Framework, TPrsStd_AISPresentation - Enable Lazy Presentation Updates
+######################################################################################
+
+NewDocument D
+AISInitViewer D
+box b1 100 100 100
+SetShape D 0:1 b1
+AISSet D 0:1 NS
+AISDisplay D 0:1 0
+box b2 100 200 300
+SetShape D 0:1 b2
+AISRemove D 0:1
+AISDisplay D 0:1 0
+
+checkview -screenshot -3d -path ${imagedir}/${test_image}.png