[Bug] Gigantamax Urshifu-Water has Urshifu-Dark's Relearn Moveset

[Snailman11]

Describe the bug

Instead of its own learn set, it uses Urshifu-Dark's level up moveset for relearning moves through Memory Mushrooms.

Link to Discord's Bug Report (Urshifu Rapid Strike turned into Single Strike after Splicing)
https://discord.com/channels/1125469663833370665/1286367926525362176

Reproduction

Use a Memory Mushroom on Urshifu-Water

Expected behavior

Urshifu-Water should have access to its own learnset when attempting to relearn moves.

Screenshots / Videos

Gmax Urshifu-Water can relearn key Dark-type moves which only exist in Urshifu-Dark's learnset.

Gmax Pikachu, which is the Gmax for two forms, has the correct relearn moveset.

Session export file

No response

User data export file

No response

Additional context

This is probably unrelated to another bug where Gmax Pikachu reverts to its base forme from Partner when Max Mushrooms are deactivated.
-Urshifu Water does not become Urshifu dark or vise versa.