Since you are pretty knowledgeable with UK taxing laws I think a lot of people here wants a clear answer regarding taxes on Hard forked coins or even if you have one. Since this is a big issue in the US if their hard-forked coins is taxable or not and what kind of taxes would even be considered for it. So I am also interested to see on what is the translation of the UK taxing authority when it comes to Hard forked coins in your country because currently US right now is still undecided about this topic.
Any new crypto assets that are produced from a fork are classed as a separate crypto asset and will go into their own new pool and thus will be subject to capital gains tax separately.