All blocks with format version 1.26.10 produce an erroneous content log error

The bug

Using the correct latest format_version of 1.26.10 for block definition files in a behavior pack produces an erroneous content log error. The blocks still load correctly.

How to reproduce

1. Ensure the content log is enabled

2. Download and open the attached world

Expected behavior

No errors

Observed behavior

Multiple content errors are produced:

[Blocks][error]-block_definitions | C:/Users/.../AppData/Roaming/Minecraft Bedrock Preview/Users/.../games/com.mojang/minecraftWorlds/.../behavior_packs/0 | blocks/demos/with_display_name.json | Unexpected version for the loaded data