Use callCabal2nix?

[3noch]

I may be wrong, but this technique breaks down if the replacement version has a different set of dependencies than the one in super. You can use self.callCabal2nix "github" (...) instead to get the desired behavior.

[ocharles]

"Use" where?

[ocharles]

Oh, apologies, you mean my override to the github package. We could change that (and if it works, I'll happily take a PR), but these changes will be upstream soon enough, making this override unnecessary anyway.