Installed package not including latest module

[davidlatwe]

Problem

I have my rezconfig.py set package_definition_python_path="/path/to/shared/code" and I include the shared module with include decorator for my package's commands function.

The included module was copied correctly into {package.root}/.rez/include directory when I run rez-build --install. But the installed package not able to pick up the correct copy of include module after I re-build with source have changed.

Cause

I found that it was because the copied shared module was named with hash string, which is fine but then Rez did not pick the right one, only the first one it globed.

https://github.com/nerdvegas/rez/blob/f81c721c079abe99746dce80853da45351a2b683/src/rez/utils/sourcecode.py#L324-L328

Maybe we could drop naming shared module with hash string ? Just hash it again when trying to access them.
I'll try submit a PR as a proposal of solution.