Thank you for your answer. In the light of your quote, I would suggest there is a possible contradiction between it and the use of immediately in the rule for Barricades.
I would think that it is always better, especially with non-native speakers such as myself and other people on the continent, to have an explicit rule rather than a accepted norm, especially when there is a possible clash between two sections of the rulebook. Maybe a clarifying rephrasing in subsequent versions of rules would be welcome ?
By the way, I have looked for the discussion you're referring to (I in fact looked for it before starting the thread), and have so far been unable to find it using the search function of the forums, and neither could I find it in the Claries and Errata of this subsection of the forum. So, would it be insufferably presumptuous to think that a passive-agressive answer is unnecessary ?
Have a nice day,
Antoine