Hi! My first post here 
Last week I uploaded my extension to get it signed. It is unlisted. The problem is that it has a binary .dll and I uploaded and empty one by mistake. The extesion was signed successfully but obviously it is not working.
Now I want to upload the correct .xpi but I am not sure how to proceed because I want to maintain my extension version and when I upload this new correct .xpi in AMO a warning message says “Version 0.0.2 already exists”?
So, should I delete the whole extension and reupload it? Should I increment the version number? (I would prefer to avoid this)
How should I proceed taking into account reviewing time and considering to ease the work on amo editors?
Thanks!