SRAM Guide R internal spring on lever broken ?

[weeksy]

Was out for lunch exercise with my lad and when he pulled the front brake it came back to the bars and won’t return. Looking it seems like the spring inside the lever is broken ?

I can’t see any way to sort it, there’s a pivot pin but that seems press fitted in ?

Anyone seen or had this?

I’ve fitted the one from my G-160 to his bike as they’re the same, but it does mean my G-160 is now without a front brake LOL.