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Description
As per #4257 (comment), it might be beneficial to restore multiple views at once, so it should be investigated. We can always allow to control it with a flag --view-parallel which would describe the amount of views that can be restored in parallel (with some safe default like 2 or 3). Implementation should be really straight forward with the parallel.Run function.
This optimization can be applied for both regular and 1-1 restore.