Mesh: Fix applying deform modifier up to index

The code would have break the first (deform only) modifiers
once the index is reached, but it will not prevent second
loop (over remaining modifiers) from run.

This was applying deform modifier twice in some conditions:
having single deform modifier and calculating deformed mesh
up to the first modifier (index=0).

1 files changed, 1 insertions, 0 deletions

diff --git a/source/blender/blenkernel/intern/DerivedMesh.c b/source/blender/blenkernel/intern/DerivedMesh.c
index 2db48e1fb13..2113b184f01 100644
--- a/source/blender/blenkernel/intern/DerivedMesh.c
+++ b/source/blender/blenkernel/intern/DerivedMesh.c
@@ -981,6 +981,7 @@ static void mesh_calc_modifiers(struct Depsgraph *depsgraph,
 
       /* grab modifiers until index i */
       if ((index != -1) && (BLI_findindex(&ob->modifiers, md) >= index)) {
+        md = NULL;
         break;
       }
     }