LockedOption shortcut may cause Null Reference Exception

[MineGame223]

I'm not very sure if it really is Baselib's bug, may need a check. But my original locked option function is working properly
here is the partly log:
[ERROR] System.NullReferenceException: Object reference not set to an instance of an object.
at MegaCrit.Sts2.Core.Models.CharacterModel.AddDetailsTo(LocString str)
at MegaCrit.Sts2.Core.Events.EventOption.AddLocVars(EventModel eventModel)
at MegaCrit.Sts2.Core.Events.EventOption..ctor(EventModel eventModel, Func1 onChosen, String textKey, IEnumerable1 hoverTips)
at MegaCrit.Sts2.Core.Events.EventOption..ctor(EventModel eventModel, Func`1 onChosen, String textKey, IHoverTip[] hoverTips)
at BaseLib.Abstracts.CustomEventModel.LockedOption(String locKey, String pageKey, IHoverTip[] tips)
at RanInSpire.scripts.events.LuthiersShopEvent.GenerateInitialOptions() // my mod

[Alchyr]

This would be null if EventModel.GetOptionDescription returns null (loc string for key does not exist)

The localization keys for events are pretty long and annoying to determine manually (and lacking any logging/debug information), might need to work on making some assistance to generate them

[MineGame223]

I guess I know why
The 3rd parameter of EventOption in protected EventOption Option has a {StringHelper.Slugify(txt)}, but in protected EventOption LockedOption it doesn't have
My original LockedOption func used Option func, so when I directly switch it to this new func, it goes wrong