From d5831398bfcce4934f24c7e1bc88081a82955347 Mon Sep 17 00:00:00 2001
From: azv <azv@opencascade.com>
Date: Fri, 5 May 2017 10:04:44 +0300
Subject: [PATCH] Fix incorrect processing Tangent features in case the
 extremity coincidence between these features has been changed (not removed).

---
 src/SketchSolver/SketchSolver_ConstraintTangent.cpp | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/SketchSolver/SketchSolver_ConstraintTangent.cpp b/src/SketchSolver/SketchSolver_ConstraintTangent.cpp
index 0bc96168e..ff72f310d 100644
--- a/src/SketchSolver/SketchSolver_ConstraintTangent.cpp
+++ b/src/SketchSolver/SketchSolver_ConstraintTangent.cpp
@@ -185,8 +185,10 @@ void SketchSolver_ConstraintTangent::notify(const FeaturePtr&      theFeature,
       if (aNbCoincidentFeatures == 2)
         isRebuild = true;
     }
-  } else if (mySharedPoint) {
-    // The features are tangent in the shared point, but the coincidence has been removed.
+  }
+
+  if (mySharedPoint && !isRebuild) {
+    // The features are tangent in the shared point, but the coincidence has been removed/updated.
     // Check if the coincidence is the same.
     std::list<AttributePtr> aCoincidentPoints = coincidentBoundaryPoints(aTgFeat1, aTgFeat2);
     isRebuild = true;
-- 
2.39.2