Worlds in the "shared" folder don't load resource/behavior packs

The bug

In GDK builds of bedrock, worlds are located in %appdata%/Minecraft Bedrock/Users/.../games/com.mojang/minecraftWorlds. The ... is either some random account number, or Shared. Worlds in the Shared folder appear for all users. However, worlds in this folder do not load resource or behavior packs.

How to reproduce

1. Find a world with a resource or behavior pack. Load the world to verify its packs work.

2. Move the world from a user folder to the Shared folder

3. Load it again

Expected results

Packs should load just as before

Observed results

They don’t