Get Bundle Field Name from Entity Definition

This RTBC is a littel bit too quick. It needs more users to confirm this otherwise we break things badly here. Apart from that: thanks for the report and the patch! Well investigated and exact/correct solution! +1

This paradigm change how we should fetch keys or labels instead of targeting fixed assumed ones etc is exactly what I promote for a long time in core because it makes it possible to drastically change the way we use/choose field as label in core. Therefor look at this issue please and help to raise recognition on this: 🐛 Get Bundle Field Name from Entity Definition Needs review

Using this in production for a long time with core and custom entity types.

Thank you! Commited! 🍻

Automatically closed - issue fixed for 2 weeks with no activity.