Git Attach in Sub/Child Domain

Would it be possible to attach a git repo to a subdomain/child website?
I have a website, a child website within, and would like to attach a git repo to (I intend to access the website via for serving previews of websites).

Currently the Git feature is listed in the Application Installer of the child website but when I try to use it I’m met with an error

“Websites matching query does not exist.”

After updated to 1.9.5E I can see the new and improved Git Manage menu but now the child domain/website has no access to Git Manage. The parent/primary website can only Git Manage itself and not any child directories.

Dev has added this to a list of issues.