[Bf-blender-cvs] [fa7ddd0f43e] blender-v2.93-release: Fix T86871: Crash with to_mesh() on tapered bezier curve

[Campbell Barton]

Commit: fa7ddd0f43ea15dd19d81e7808de2bfe8cfc89ee
Author: Campbell Barton
Date:   Wed Apr 21 00:20:47 2021 +1000
Branches: blender-v2.93-release
https://developer.blender.org/rBfa7ddd0f43ea15dd19d81e7808de2bfe8cfc89ee

Fix T86871: Crash with to_mesh() on tapered bezier curve

===================================================================

M	source/blender/blenkernel/intern/mesh_convert.c

===================================================================

diff --git a/source/blender/blenkernel/intern/mesh_convert.c b/source/blender/blenkernel/intern/mesh_convert.c
index a4122dcca41..729c38ae7cf 100644
--- a/source/blender/blenkernel/intern/mesh_convert.c
+++ b/source/blender/blenkernel/intern/mesh_convert.c
@@ -1065,6 +1065,7 @@ static void curve_to_mesh_eval_ensure(Object *object)
   Curve *curve = (Curve *)object->data;
   Curve remapped_curve = *curve;
   Object remapped_object = *object;
+  remapped_object.runtime.bb = NULL;
   remapped_object.data = &remapped_curve;
 
   /* Clear all modifiers for the bevel object.
@@ -1077,6 +1078,7 @@ static void curve_to_mesh_eval_ensure(Object *object)
   Object bevel_object = {{NULL}};
   if (remapped_curve.bevobj != NULL) {
     bevel_object = *remapped_curve.bevobj;
+    bevel_object.runtime.bb = NULL;
     BLI_listbase_clear(&bevel_object.modifiers);
     remapped_curve.bevobj = &bevel_object;
   }
@@ -1085,6 +1087,7 @@ static void curve_to_mesh_eval_ensure(Object *object)
   Object taper_object = {{NULL}};
   if (remapped_curve.taperobj != NULL) {
     taper_object = *remapped_curve.taperobj;
+    taper_object.runtime.bb = NULL;
     BLI_listbase_clear(&taper_object.modifiers);
     remapped_curve.taperobj = &taper_object;
   }
@@ -1107,6 +1110,10 @@ static void curve_to_mesh_eval_ensure(Object *object)
     BKE_object_eval_assign_data(&remapped_object, &mesh_eval->id, true);
   }
 
+  MEM_SAFE_FREE(remapped_object.runtime.bb);
+  MEM_SAFE_FREE(taper_object.runtime.bb);
+  MEM_SAFE_FREE(bevel_object.runtime.bb);
+
   BKE_object_free_curve_cache(&bevel_object);
   BKE_object_free_curve_cache(&taper_object);
 }