Can offset2D be applied to only 1 of multiple pending wires?

I have a model where I'd like to offset a faces boundary, then offset those edges again (by a different amount), and then extrude between those two offsets. See the example.

I understand what is happening here - the first offset works and then I add the "outer" wires to pending again so the second offset is being applied to *both* the outer boundary and the previously offset wire (which is still pending). But I'd like this second offset to only be applied to the "outer" boundary wire, so that I end up with 2 pending wires that are defined independently of each other with only reference to the boundary. Is there a straight forward way to do this, so I can extrude the area between those two offsets.

```python
import cadquery as cq
result = cq.Workplane('XY').box(1, 1, 0.2)
show_object(result)
result = result.faces('>Z').wires().tag('outer').toPending().offset2D(-0.05)
show_object(result)
result = result.wires(tag='outer').toPending().offset2D(-0.2)
show_object(result)
result = result.extrude(0.1)
show_object(result)
```

The desired result can be achieved by switching the offset order:

```python
import cadquery as cq
result = cq.Workplane('XY').box(1, 1, 0.2)
show_object(result)
result = result.faces('>Z').wires().tag('outer').toPending().offset2D(-0.20)
show_object(result)
result = result.wires(tag='outer').toPending().offset2D(-0.05)
show_object(result)
result = result.extrude(0.1)
show_object(result)
```

But I'm still curious if this is the best way to achieve what I want or if there is a better recommendation. And ideally I'm still interested in a way to have the offset2D only affect 1 pending wire so that the order doesn't matter and the final two offsets are independent of each other.