https://bugs.winehq.org/show_bug.cgi?id=40346
--- Comment #2 from Bob the Hamster Bob-winehq@HamsterRepublic.com --- Ah, yes, I mean Packages and Packages.gz but I typed Release and Release.gz when I was typing up the bug.
Your description of the problem makes sense.
Now that I have the correct Packages.gz I was able to get winehq-devel installed.
Thank you! :)