At current the generated asset URLs move up to the root folder containing the asset folder.
It should be sufficient to move up to the asset folder only. This would help in cases where the asset folder could not exist with this name.
Example from some css:
now: url(…/…/assets/img/deco.jpg)
suggested: url(…/img/deco.jpg)
This would save me a lot of URL editing.
Thanks!