Long names result in an error in load game

[MikkoMMM]

I already made an in-game report of this but I have additional information now about the situation. I tried naming my character "Johann Gambolputty de von Ausfern Schpleden-Schlit" (the longest name it let me). Everything worked fine until I tried loading the game again. The following error occurred:

Lua Error: /engine/ui/TreeList.lua:128: attempt to index field 'dir' (a string value)
At [C]:-1 __newindex
At /engine/ui/TreeList.lua:128 drawItem
At /engine/ui/TreeList.lua:161 recurs
At /engine/ui/TreeList.lua:162 recurs
At /engine/ui/TreeList.lua:165 drawTree
At /engine/ui/TreeList.lua:185 generate
At /engine/ui/Base.lua:108 init
At /engine/ui/TreeList.lua:87 init
At /engine/class.lua:64 new
At /mod/dialogs/LoadGame.lua:84 init
At /engine/class.lua:64 new
At /mod/dialogs/MainMenu.lua:36 fct
At /engine/ui/List.lua:153 onUse
At /engine/ui/List.lua:87 fct
At /engine/Mouse.lua:48 receiveMouse
At /engine/Mouse.lua:76 delegate
At /engine/ui/Dialog.lua:518 mouseEvent
At /engine/ui/Dialog.lua:301 fct
At /engine/Mouse.lua:48

I traced the problem to name field in the desc.lua in its save folder. When I replace it with a shorter name everything works fine.