Fix #135130: Mask from Cavity does not work via operator

Introduced with 6b0fa709fa.

Pull Request: https://projects.blender.org/blender/blender/pulls/135139

source/blender/editors/sculpt_paint/sculpt_ops.cc

@@ -1251,6 +1251,7 @@ static int mask_from_cavity_exec(bContext *C, wmOperator *op)
   undo::push_begin(scene, ob, op);
   undo::push_nodes(*depsgraph, ob, node_mask, undo::Type::Mask);
 
+  automasking->calc_cavity_factor(*depsgraph, ob, node_mask);
   apply_mask_from_settings(*depsgraph, ob, pbvh, node_mask, *automasking, mode, factor, false);
 
   undo::push_end(ob);