[1.21.132] Put the named brush monster eggs in the brush monster cage, and you can't brush out the named creatures.

What happened:

When using an anvil-renamed spawn egg on a spawner in Bedrock Edition, the spawner correctly changes its type to the corresponding mob and begins spawning. However, the spawned mobs do not display the custom name from the egg. Additionally, they lack the properties of named mobs (e.g., they despawn randomly).<br/>Note: Using the same renamed spawn egg directly on the ground (to spawn the mob manually) works correctly, and the name displays as intended. The issue only occurs when using the spawner.

What you expected to happen:

Mobs spawned by the spawner should inherit the custom name from the spawn egg used to set it up. The name should appear above the mob, and it should retain the properties of a named mob (e.g., persistence, not despawning).

Steps to reproduce:

1. In Bedrock Edition, use an anvil to rename a spawn egg (e.g., rename a Zombie Spawn Egg to "Test Mob").

2. Place a spawner and right-click it with the renamed spawn egg. Confirm the spawner's type has changed.

3. Wait for the spawner to produce mobs.

4. Observe that the spawned mobs have no custom name tag and will despawn over time.