Comment 19 for bug 1205149

It would be nice if to know if the bug is present on a new, fresh install. Also, maybe a bug in the compiler/linker has been fixed by the distribution.

I went through a debugging session with hjd last night and I don't understand much neither. It seems suddenly valid pointer get erased for no obvious reason. If the bug persists, I will try another way of storing former buildings informations by values which should fix this bug.