sculpt-dev: fix crash in boundary brush

source/blender/editors/sculpt_paint/sculpt_boundary.c

@@ -1286,6 +1286,10 @@ static void sculpt_boundary_bend_data_init(SculptSession *ss,
       continue;
     }
 
+    if (boundary->edit_info[i].original_vertex.i == -1) {
+      continue;
+    }
+
     const float *co1 = SCULPT_vertex_co_get(ss, vertex);
 
     float dir[3];

source/blender/editors/sculpt_paint/sculpt_dyntopo.c

@@ -268,8 +268,8 @@ void SCULPT_cotangents_begin(Object *ob, SculptSession *ss)
       if (!ss->vemap) {
         BKE_mesh_vert_edge_map_create(&ss->vemap,
                                       &ss->vemap_mem,
-                                      mesh->mvert,
-                                      mesh->medge,
+                                      BKE_mesh_verts(mesh),
+                                      BKE_mesh_edges(mesh),
                                       mesh->totvert,
                                       mesh->totedge,
                                       true);