Summary:
Glass panes and iron bars do not connect to mangrove roots, unlike in Java Edition.

Steps to Reproduce:

1. Place mangrove roots
2. Place a glass pane and an iron bar next to the mangrove roots

Observed Results:
The glass pane and iron bar do not connect to the mangrove roots.

Expected Results:
The glass pane and iron bar should connect to the mangrove roots.

Screenshots:
Bedrock:

Java: