The attached files illustrate a problem that I raised, and was told not to worry about, when "---" was exchanged for \textemdash. The problem is that the latter does not break the way the former does. What can we do about this. It's very annoying. (Note that this file is format 530 from latest master.)
Richard
emdash.lyx
Description: application/lyx
emdash.pdf
Description: Adobe PDF document