I have seen what I think is a variant of this. However, it is simply that having a ? at the end of a phrase in brackets does not create a new page
e.g.
[[New Page]] - will create a new page
[[New Page Also?]] - will NOT create a new page
but remove the ?
[[New Page Also}} - will create a new page
Did not see the same behavior with ! - i.e. it did create a new page