Did they have a fork with local changes? The way I read it, they just did import "github.com/go-gl/opengl/gl" and then at some point the go-gl project (whic

Did they have a fork with local changes? The way I read it, they just did import "github.com/go-gl/opengl/gl" and then at some point the go-gl project (which they don't manage) made incompatible changes that broke their build. Presumably there is some version of go-gl they could build against (which happened to be cached on their developer's machine), but they don't know which one because there's no version or tag in that string.