For Fedora 23, No branches can be created. I was assuming this is a file creation permission problem, however I added those permissions, and still no dice. There is a fix for Debian Distro’s from Oct '15, no clue if that fix got merged. I’m not even sure it would work on Fedora.
Update: It creates this file structure Defold/branches/15194/7894, however no files are copied over.