Insert Image preview are missing (Lenya 2.0.2)

Hi all,
I'm working on a project based on Lenya 2.0.2.
I deployed it in the lenya-2.0.2 context path.
When I try to insert an image using BXE editor, in the "Insert Image" 
popup the previews for the images are missing.
Looking in the generated HTML source, the <img> tag src shows the 
context path doubled, and this is the reason why the previews are not 
displayed.
Taking  a deeper look, it seems, that o.a.c.e.InsertAsset class creates 
an 'asset2proxyUrl' map, where the assets URL are put as value, but, 
these URLs contains the context-path. Now, the .jx file use these URLs 
as the src for the <img> tag.
And, the context path gets duplicated, because the pipeline from 
usecase.xmap use the "proxy" transformer at the end.

My question is: how can be solved this problem?

Thanks in advance,
Levi