Server crashed after editing a removed subtask

[thesystman]

We removed a subtask and after that we tried to edit it. The following error appears in the server:

58766.428 Error MainLoop.cpp:1177: Exception at tick 31636297: The mod Todo List caused a non-recoverable error.
Please report this error to the mod author.
Error while running event Todo-List::on_gui_click (ID 1)
Todo-List/todo/features/subtasks.lua:66: attempt to index local 'subtask' (a nil value)
stack traceback:
#011__Todo-List__/todo/features/subtasks.lua:66: in function 'update_subtask'
#011__Todo-List__/todo/features/subtasks.lua:55: in function 'on_edit_subtask_save_click'
#011__Todo-List__/todo/todo.lua:163: in function 'on_gui_click'
#011__Todo-List__/control.lua:20: in function <Todo-List/control.lua:19
58766.428 Error ServerMultiplayerManager.cpp:92: MultiplayerManager failed: "The mod Todo List caused a non-recoverable error.
Please report this error to the mod author.
Error while running event Todo-List::on_gui_click (ID 1)
Todo-List/todo/features/subtasks.lua:66: attempt to index local 'subtask' (a nil value)
stack traceback:
#011__Todo-List__/todo/features/subtasks.lua:66: in function 'update_subtask'
#011__Todo-List__/todo/features/subtasks.lua:55: in function 'on_edit_subtask_save_click'
#011__Todo-List__/todo/todo.lua:163: in function 'on_gui_click'
#011__Todo-List__/control.lua:20: in function <Todo-List/control.lua:19>
58766.428 Info ServerMultiplayerManager.cpp:760: updateTick(31636297) changing state from(InGame) to(Failed)
58766.442 Quitting: multiplayer error.
58766.442 Info GlobalContext.cpp:684: Waiting for child processes to exit:
58766.871 Info ServerMultiplayerManager.cpp:138: Quitting multiplayer connection.
58766.871 Info ServerMultiplayerManager.cpp:760: updateTick(4294967295) changing state from(Failed) to(Closed)
58766.871 Info HttpSharedState.cpp:54: Downloading https://multiplayer.factorio.com/remove-game/4978613
58766.959 Info UDPSocket.cpp:210: Closing socket
58766.959 Info UDPSocket.cpp:240: Socket closed
58766.959 Info UDPSocket.cpp:210: Closing socket
58766.997 Info UDPSocket.cpp:210: Closing socket
58766.998 Info UDPSocket.cpp:240: Socket closed
58766.998 Goodbye

Server version: 0.17.31
Mod version: 17.2.1

After the error the server stopped.

[JonasJurczok]

Thanks for the report. I'll take a look :)