d3d10/effect: Use first element when index expression evaluates to out of bounds value.

dlls/d3d10/effect.c

@@ -774,7 +774,7 @@ static void d3d10_effect_update_dependent_props(struct d3d10_effect_prop_depende
                 {
                     WARN("Expression evaluated to invalid index value %u, array %s of size %u.\n",
                             variable_idx, debugstr_a(v->name), v->type->element_count);
-                    return;
+                    variable_idx = 0;
                 }
 
                 /* Ignoring destination index here, there are no object typed array properties. */