As [Gayot Fow][1] has very correctly stated in the comments, every country has its own visa system and could really care less what any other country is doing with theirs, with a very few very notable exceptions. You could have ten concurrent visas from ten different countries. As long as you've got the appropriate visa to enter the UK, that's really all the Border Patrol will care about.


  [1]: https://expatriates.stackexchange.com/users/3605/gayot-fow