per [1]
If you fail to put <nowiki> tags around a pipe symbol (|), the page can display differently in 'preview' to the saved page.
For example;
=== test one === I manually edited all the articles using the template, changing e.g.; |visitor coach=Fred |home coach=Bob to; |visitor coach=[[Fred]] |home coach=[[Bob]] The template code needs a lot more work; to behave itself, it should also do a check to see if the home/away coaches have actually been specified at all --end of test--
gives this;