Shattered Pixel Dungeon 2.5.4, android version, GrapheneOS, github version

So I manage to get the Talisman of Foresight as a drop from something. I have the Shard of Oblivion in my inventory (no upgrades to it). The description says that “The shard will also prevent you from automatically identifying equipment, but can be used to manually identify items that are ready for it.” The Talisman of Foresight that I got has a purple background, meaning that it is unidentified and could be cursed.

I figure that if I equip the Talisman of Foresight, the Shard of Oblivion would prevent it from being identified. If so, I could wear it in its unidentified state in order to get the Shard of Oblivion bonus loot effect. So I equip the Talisman of Foresight. It is not cursed, but it immediately becomes identified. The Shard of Oblivion did not prevent the identification.

Is this intended behavior, or is it unintended?

Thank you for clarifying.