Access tier property not restored after overwriting the existing object in the original location
Explanation
Object with access tier Cool, overwritten by a restore with Hot access tier, does not change the access tier to Hot, it remains Cool.
Workaround
In the case of Azure cloud storage, when we have an object with accessTier as cool, and we try to upload an object/blob of the same name with Hot(inferred) accessTier with an overwrite option, accessTier remains as cold. A new access tier does not get set. This behavior is observed when a file is uploaded from the portal. It does not change accessTier from cool to Hot (inferred) when the Overwrite option is selected on the Azure portal.