Hi Oleg,
I notice that emacs-forge, in its forge-pkg.el file, mentions newer dependencies than what we currently have: ghub version 20190319, which apparently contains a fix for a relevant bug; and Magit version 20190408. I'm not sure how important the update to Magit is, and this newer version of Magit also happens to depend on an additional package, libegit2. It might be nice to update our version of ghub.
Best,
Brian