Chaning a new package still in incoming?

[Peter S Galbraith <GalbraithP@dfo-mpo.gc.ca>]

I have uploaded mh-book to incoming 8 days ago, and it's still
there.

I _just_ found a little bug and would like to replace with -1
package with a new one with the same name (but new changes file
with new checksum).  Can I do that?  Or Must I upload a version -2 ?

Thanks,
Peter