Using libraries which add searchers/loaders from C++ about sol2

[mothfuzz]

Another interesting quirk, which has me completely stymied: if I add the 'resources' directory to package.path, and then change require('resources/fenneltest') to simply require('fenneltest'), it fails as it tries to parse a lua script instead of a fennel script.

Here is the code I am using to change package.path from C++:

auto package_path = lua["package"]["path"].get<std::string>();
auto resources_path = std::filesystem::current_path() / "resources";
lua["package"]["path"] = package_path
+ ";" + (resources_path / "?.lua").string()
+ ";" + (resources_path / "?.fnl").string();

I have no idea why simply changing the path would cause it to be interpreted as lua or as fennel, but it might be related to the above issue.