Behaviour field has newlines removed

[Simone Curzi]

More on this issue: with the latest release (3.3.15.1), the Behaviour field is the only one where the field title is in the same line of the content.

In other words, I have

Behaviour: My text.

instead of:

Behaviour:
My text.

This is a minor issue, though, even if it introduces a discrepancy.