AI (Copilot/Codeium) autocompletions not working in visual mode

Bug description
In the visual mode, autocompletion with Github Copilot/Codeium does not work anymore. They work fine in the source mode

Steps to reproduce
Create a new quarto document in VSCode/RStudio
Turn to visual mode
Start a (R/Python) code chunk
Start typing - note no completions are available
Turn to source mode
Note completions work
Expected behavior
AI autocompletions also work in visual mode

Actual behavior
AI (Copilot/Codeium) autocompletions not working in visual mode

Your environment
RStudio 2024.04.2+764 "Chocolate Cosmos" Release (e4392fc9ddc21961fd1d0efd47484b43f07a4177, 2024-06-05) for windows
Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) RStudio/2024.04.2+764 Chrome/120.0.6099.291 Electron/28.3.1 Safari/537.36, Quarto 1.5.56 (D:/quarto/bin/quarto.exe)

Positron Version: 2024.07.0 (system setup) build 2024.07.0-125
Code - OSS Version: 1.91.0
Commit: cae4905332a0f41a6233e196b48a6679b832000a
Date: 2024-07-31T22:26:02.970Z
Electron: 29.4.0
Chromium: 122.0.6261.156
Node.js: 20.9.0
V8: 12.2.281.27-electron.0
OS: Windows_NT x64 10.0.22631

Quarto check output
Quarto 1.5.56
[>] Checking versions of quarto binary dependencies...
Pandoc version 3.2.0: OK
Dart Sass version 1.70.0: OK
Deno version 1.41.0: OK
Typst version 0.11.0: OK
[>] Checking versions of quarto dependencies......OK
[>] Checking Quarto installation......OK
Version: 1.5.56
Path: D:\quarto\bin
CodePage: 936

[>] Checking tools....................OK
TinyTeX: (external install)
Chromium: (not installed)

[>] Checking LaTeX....................OK
Using: TinyTex
Path: C:\Users\kv989\AppData\Roaming\TinyTeX\bin\windows
Version: 2024

[>] Checking basic markdown render....OK

[>] Checking Python 3 installation....OK
Version: 3.11.5 (Conda)
Path: D:/Anaconda/python.exe
Jupyter: 5.3.1
Kernels: python3

[>] Checking Jupyter engine render....OK

[>] Checking R installation...........OK
Version: 4.2.2
Path: D:/R-4.2.2
LibPaths:

• D:/R-4.2.2/library
  knitr: 1.45
  rmarkdown: 2.25

[>] Checking Knitr engine render......OK

No source file or test is named. Reproduce the issue in a new Quarto document using VSCode or RStudio, compare completions in visual and source modes, and trace the visual-mode entry point. Done means GitHub Copilot and Codeium provide R or Python completions while editing code chunks in visual mode.