skip_copying also sets skip_upload to true

[ascott18]

In my builds, I have a separate step for GH release creation that uses a trimmed version of my manual changelog (similar issue to #71). A while back, I used to be able to run this with options -o -e -c -l to avoid re-fetching externals, re-localizing, re-copying files, and so on. Unfortunately, a change was made to cause option -c (skip_copying) to also turn off uploading entirely: cf2276c#diff-8bc94a3006768345d17c827c0bb5840e6e4daee6de1c2b1ea672f53f162d171dR117

Looking at that commit message, it feels like this change was maybe unintentional? In any case, it would be nice to be able upload a different changelog to the GH release without having to re-build the entire addon.

[nebularg]

Looking at that commit message, it feels like this change was maybe unintentional?

Who knows, probably slipped in when I was testing stuff and I figured it was fine :p