New Package Version Gives 500

[davegardner]

I have just uploaded a new Version of the Cascade.Head package. No problems creating the Package Version or uploading the package. But when I try to download I get an error 500. I noticed that existing packages use filenames of the form

Orchard.Module.Cascade.Head-1.4.nupkg

But the Orchard.Packaging module creates package filnames like

Orchard.Module.Cascade.Head.1.4.nupkg

I tried deleting the package and uploading a package with the hyphen instead of a period, but that made no differance.

Could someone clarify the filenaming conventions please?

And also, why the 500 error?