Fix save cache count

[f2069]

The default collectionId is 0.
When GetCache(0, ...) is called for the first time _cache.Count becomes 1 and _cacheCount remains 0.

As a result, we always go into the if (collectionId >= _cacheCount) check and try to fill _cache even though it is already filled.

And when we call ClearPool(), the if (spawnableCollectionId >= _cacheCount) check prevents us from going any further because _cacheCount is 0 and we will never clear the pool.

public void ClearPool(int spawnableCollectionId)
{
    if (spawnableCollectionId >= _cacheCount)
        return;
    // ....
}

With this fix we remember the real size of the cache and solve both problems - we don't try to re-fill the already filled cache and allow to clear the default pool collection.

[FirstGearGames]

Ty for this find!