Fix error calculating bmesh normals

edge vector stack was left un-cleared.

1 files changed, 4 insertions, 0 deletions

diff --git a/source/blender/blenkernel/intern/mesh_evaluate.c b/source/blender/blenkernel/intern/mesh_evaluate.c
index 302d85e8128..d17ca751c5e 100644
--- a/source/blender/blenkernel/intern/mesh_evaluate.c
+++ b/source/blender/blenkernel/intern/mesh_evaluate.c
@@ -372,6 +372,10 @@ void BKE_lnor_space_define(MLoopNorSpace *lnor_space, const float lnor[3],
 		/* If vec_ref or vec_other are too much aligned with lnor, we can't build lnor space,
 		 * tag it as invalid and abort. */
 		lnor_space->ref_alpha = lnor_space->ref_beta = 0.0f;
+
+		if (edge_vectors) {
+			BLI_stack_clear(edge_vectors);
+		}
 		return;
 	}