This is not an edge case. effective go[0] clearly states "Slices hold references to an underlying array, and if you assign one slice to another, both refer to

This is not an edge case. effective go[0] clearly states "Slices hold references to an underlying array, and if you assign one slice to another, both refer to the same array." [0] https://golang.org/doc/effective_go.html#slices https://golang.org/doc/effective_go.html#slices