gopages: `-source-link` still generates `dist/src` files

When I specify -source-link to link directly to my github repo, gopages still generates the dist/src files even though it doesn't link to them. This blows up the dist folder from 3.5MB to 200MB for my modest-sized application.

I can of course delete the folder afterwards, but is there a way to avoid generating the source files in the first place?