CTkTabview does not properly pack tabs unless anchor is in the "s" row

[johnson-earls]

When CTkTabview is created with an anchor that is not sw, s, or se, it creates child frames that do not expand to fill the tab area.
This can be seen with the following simple app:

import customtkinter
import pprint

class App(customtkinter.CTk):
    def __init__(self):
        super().__init__()

        anchors = {
            'nw': (0,0),
            'n': (1,0),
            'ne': (2,0),
            'w': (0,1),
            'center': (1,1),
            'e': (2,1),
            'sw': (0,2),
            's': (1,2),
            'se': (2,2),
        }
        self.tabs = {}
        for (anchor,(gcol,grow)) in anchors.items():
            tabview = customtkinter.CTkTabview(self, anchor=anchor)
            self.tabs[anchor] = tabview
            tabview.grid(column=gcol, row=grow, sticky="nsew")
            tab = tabview.add(anchor)
            tab.grid_columnconfigure(0, weight=1)
            tab.grid_rowconfigure(0, weight=1)
            tab.grid(column=0, row=0, sticky="nsew")
            tab.tabInfo = TabInfo(tab)
            tab.tabInfo.grid(column=0, row=0, sticky="nsew")

class TabInfo(customtkinter.CTkLabel):
    def __init__(self, master):
        super().__init__(master)
        self.setup_text()
        self.bind("<Configure>", self.reconfigure)

    def reconfigure(self, event):
        self.setup_text()

    def setup_text(self):
        self.configure(text=self.winfo_geometry())

if __name__ == '__main__':
    app = App()
    app.mainloop()