In most languages Subset would be called a trait or interface, rather than general inheritance. You've picked an example with no fields or overriden methods, so it's impossible for it to demonstrate the shortcomings of inheritance.
I don't think traits or interfaces with default implementations prevent the bug, as I can imagine a Rust implementation that would do something similar.
This leads the programmer towards composition and delegation.
To aid with this, Delphi even has some sugar for delegation[1].
[1]: https://docwiki.embarcadero.com/RADStudio/Alexandria/en/Usin...