Yup, this is exactly what I found. The ```rename``` forces the string to a unicode change.

Since the xml-id is a CRC-32 checksum which includes the ```long_name```, the checksum changes.

Okay that's all fine. But this begs the question, what exactly is this PR fixing? I can't see how changing the long-name of a coordinate from a string to a unicode string fixes something that's broken? If it does then what is it?

Until that's answered I'm defo :-1:  on this PR