[luatex] glue nodes

[Herbert Voss]

Hi all,

in the documentation I read:


\subsubsection{glue_spec items}
[...]
\starttabulate[|lT|l|p|]
[..]
\NC writable      \NC boolean \NC If this is true, you can't assign to
                   this \type{glue_spec} because it is one of the
                   preallocated special cases. New in 0.52\NC\NR


Is this correct that "writable=_true_" refers to a preallocated node?
 From what I read it should be false??


Herbert