I thought you were joking but then I checked and holy shit it's true.

That's only part of the story, from what I heard Maurice Leblanc already had a draft ready with the name sherlock Holmes written out, and only when the draft was ready did he reach out to Arthur Conan Doyle to ask for permission to use sherlock Holmes' character- to which Doyle utterly refused and I remember reading something about a lawsuit against Leblanc but I could be wrong

As a matter of fact, the rivalry between conan and kaitou kid in detective conan is a reference to this

It's actually a Sparkling recolour - you can see it briefly in the trailer.

What? Where?

1:09 right at the bottom-right of frame. It's just the 'lid' but it's black (original Sparkling bottle is silver) and the lighting is good enough that I think it's safe to say that's definitely a recolour.

Would be funny if Herlock the character got kicked in the butt like his actor does every end of the year by a Muay Thai fighter. :lolol