fix error in last commit. Misunderstood BM_vert_is_manifold(), added some comments.

1 files changed, 8 insertions, 0 deletions

diff --git a/source/blender/bmesh/tools/BME_bevel.c b/source/blender/bmesh/tools/BME_bevel.c
index 59a35abfd63..5ef70f9cc2b 100644
--- a/source/blender/bmesh/tools/BME_bevel.c
+++ b/source/blender/bmesh/tools/BME_bevel.c
@@ -148,6 +148,7 @@ float *BME_new_transdata_float(BME_TransData_Head *td)
  * The drawback, though, is that this code doesn't merge customdata. */
 static int BME_Bevel_Dissolve_Disk(BMesh *bm, BMVert *v)
 {
+	BMIter iter;
 	BMEdge *e, *elast;
 	BMLoop *l1, *l2;
 
@@ -155,6 +156,13 @@ static int BME_Bevel_Dissolve_Disk(BMesh *bm, BMVert *v)
 		return 0;
 	}
 
+	/* hrmf, we could have a version of BM_vert_is_manifold() which checks for this case */
+	BM_ITER(e, &iter, bm, BM_EDGES_OF_VERT, v) {
+		if (BM_edge_face_count(e) != 2) {
+			return 0;
+		}
+	}
+
 	if (BM_vert_edge_count(v) > 2) {
 		while (BM_vert_edge_count(v) > 2) {
 			e = v->e;