https://youtu.be/Q6SRisTcftQ

Issue: Deck is deleted when renaming the deck name’s first character.

Steps to Reproduce:

1. Open an existing deck.
2. Rename the deck by changing the first character:

• Case change only (e.g., aDeck → ADeck), or
• Replace with a different character (user-reported). 3.Save/confirm the rename.

Actual Result: The deck gets deleted after the rename.

Expected Result: The deck name should update normally, and the deck should remain intact.

Notes: User reported this can happen even when the first character is changed to a different character, not only case changes.