Comment 2 for bug 23302

I reopen it, removing Tolleg Fog Heen as assignee (my guess is that he is there just as a default value when importing from older bugzilla), because I wrote a new specification for the general case of bug 22842, but as it may take much time to actually be implemented, I think thunderbird may wish to have some 'temporary hack' to avoid this bug. And bug 22842 may well be closed now that a spec have been written, but I don't wish this one to be closed at the same time.