Potential deadlock - insert and evict acquire the same accessor #5
Description
In insert method, under hight concurrent cases, it possible for a thread to evict the node that was just inserted by the same call.
So the thread at A tries to acquire the accessor that it already taken at B:
A: https://github.com/tstarling/thread-safe-lru/blob/master/thread-safe-lru/lru-cache.h#L387
B: https://github.com/tstarling/thread-safe-lru/blob/master/thread-safe-lru/lru-cache.h#L281
which cause deadlock