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 * Whether the current page query is single page.
 *
 * The parameter can contain the post ID, post title, or post name. The
 * parameter can also be an array of those three values.
 *
 * This applies to other post types, attachments, *pages*, posts. Just means
that
 * the *current query has only a single object*.

This is wrong, is_single() returns false for pages

1) the fuction comment should be corrected

2) how can I have is_single to return true for a custom post-type that
behaves like a page ?

Best regards

-- 
Lox
lox.dev at knc.nc