Re-parenting using portal gives different behavior compared to imperative approach.

[skrichten]

@drcmda In this issue you suggest using a portal to re-parent objects...
#121

However it seems like something unexpected happens that is different from doing it imperatively. I have forked the example sandbox to illustrate....
https://codesandbox.io/s/three-fibre-userender-test-eul4l?file=/src/index.js

I'm trying to re-parent while keeping the object in the same position. This works as expected with the imperative approach (line 41). But if you comment that out and use the declarative approach, (uncomment line 42), the object does not keep its position.

Any help would be appreciated!