[Bug] School Shoes wearable stuck, can't be changed from backpack after onboarding equip

### Platform
Mobile (Android and iOS)

### App Version
Production v1.12.2 (1587)

### Device Information
Not specified

### Issue Description
"School Shoes" wearable gets permanently stuck when equipped via the "Choose your look" onboarding avatar (schoolgirl/sailor-uniform preset). Backpack can't change it afterward. Manually equipping "School Shoes" from the backpack (not via onboarding) works fine and stays changeable — points to the onboarding equip path, not the wearable itself.

### Expected Behavior
Shoes should be changeable from the backpack like any other wearable, regardless of how they were first equipped.

### Screenshots / Media

https://github.com/user-attachments/assets/db3f2c21-5f0b-4913-b63f-626d8631e636

### Steps to Reproduce
1. Create a new account.
2. On "Choose your look", select the schoolgirl-style avatar (sailor uniform, pleated skirt, knee-high socks).
3. Finish onboarding, enter Discover or in-world.
4. Open backpack, try to change the shoes.

### Occurrence
100% — reproduced on both Android and iOS with this onboarding avatar.

**Requested by ludmila.fantaniella via Slack**