Making a repo of downloaded dub package

[Dukc via Digitalmars-d-learn]

More than once I have downloaded a DUB package which almost 
compiles but not quite. The fixes are often so trivial that even 
the user can do them, and the package starts working.

But one may want to create a pull request to fix those issues for 
others too. Is there any way to make the automatically downloaded 
dub package into a git repository which acts as if cloned from 
GitHub before making the changes?