Form talk:Book
False value for Is subsection resolves as true
If the "Is subsection" checkbox is left empty/false, it renders in the source as |Is subsection=No. {{Facts/Book/Section}} checks only if there's any value, not what the value is, so "No" has the same result as "Yes" or anything else put in the field via source editing.
It's unclear whether this behavior should be changed in this Form, to make the false input result in no "Is subsection" value so that the template evaluates it as false, or changed in {{Facts/Book/Section}} to check the actual content. The interim fix has been to manually remove |Is subsection=No from Book Facts with sections that have created or edited via form. -Oznogon (talk) 16:33, 6 October 2023 (UTC)