RayGUI GuiTextBox override method ref missing

[OOaker]

I can't seem to get the override method to work. Every draw cycle it just overwrites the text with what's in the text string:

int RayGui.GuiTextBox(Rectangle bounds, string? text, int textSize, bool editMode)

All other controls where you can actually edit the values by keyboard have a "ref int" parameter such as GuiValueBox and GuiSpinner. Shouldn't the string here also be "ref string text"? It works as expected if I use the pointer version:

int RayGui.GuiTextBox(Rectangle bounds, sbyte* text, int textSize, bool editMode)

Which makes sense because, well, it points to a string in memory. However it is bloody annoying to work with pointers in order to just add a default starting value into the textbox.

Edit: Same problem with the GuiMessageBox.