Auto update fails if skipped a version

[jokedst]

I tried to update from 1.2.0 to 1.2.2
On boot it asked, I said yes, and then got a popup saying
"Update check failed with an exception: File does not exist:
C:\Users\Me\AppData\Local\Atray\packages\ATray-1.2.1-delta.nupkg"

Expected behavior:
It downloads the whole, non-incremental file, and installs that instead