page insert text bug

[hbh112233abc]

Please provide all mandatory information!

Describe the bug (mandatory)

I find some chars insert the page can not show!
like Ⓐ,⑱

To Reproduce (mandatory)

import fitz
doc = fitz.open()
txt = 'Ⓐ'
page = doc.new_page()
page.insert_text((100,100), txt,fontsize=30,fontfile="c:/Windows/Fonts/simhei.ttf")
doc.save('test.pdf')

Expected behavior (optional)

I try set other fontfile,and change encoding param, but not effect

Screenshots (optional)

Your configuration (mandatory)

windows 10
3.10.0 (tags/v3.10.0:b494f59, Oct 4 2021, 19:00:18) [MSC v.1929 64 bit (AMD64)]
win32

PyMuPDF 1.20.0: Python bindings for the MuPDF 1.20.1 library.
Version date: 2022-06-27 00:00:01.
Built for Python 3.10 on win32 (64-bit).

[JorjMcKie]

This is not a bug, but a "question". So I transfer it to the Discussions tab for further handling.

[JorjMcKie]

You must of course always use a font containing the required symbols. This is a working example:

doc=fitz.open()
page=doc.new_page()
text="text="Ⓐ ⑱ ➀ ➁ ➂ ➃ ➄ ➅ ➆ ➇ ➈ ➉"
point= (100, 100)
page.insert_font("F0",fontfile="noto-sans-symbols-regular.ttf")
page.insert_text(point, text, fontname="F0")
doc.save("x.pdf")

[hbh112233abc]

thanks