A track mastered at 44.1kHz/24bit IS the maximum quality available.
Re-downloading won't produce a higher sample rate. Only check bit
depth for UltraHiRes/HiRes quality matching — if cache has 24-bit,
use it regardless of sample rate.
Previously, requesting UltraHiRes with a 44.1kHz/24bit cache would
discard the cache and re-download, getting the exact same data.
cc
vicrodh
49fc2ae41e