Cache is never set to Initialized

[Vlix]

I've looked through the source code, and the Uninitialized case does say:

-- The cache is uninitialized. Mark the cache as initializing to block other
-- threads. Initialize and return.
Uninitialized -> pure (refreshCache Uninitialized cachedT)

But as you see, below it, it just refreshes the cache.
There's only two spots where Initialized is even written in the code (excluding the comment) and that is in the definition and the case.

I'm not completely sure if adding writeTVar Initialized cachedT is all that's needed. It does seem like giving the refreshCache function Uninitialized as previousState would ensure it should be reset on getting an exception. So might be an easy fix? 🤔