Pushing to GitHub via WebApp clobbers file mode

[kilyanni]

Description

As per title; pushing via the Typst WebApp erases file modes (e.g. turning executable script files non-executable). This occurs whether the file was touched or not.

Steps to reproduce:

• Make a GitHub repository
• Add some files, some of which are executable (e.g. chmod +x *.sh)
• Import to Typst
• Make any kind of change via the WebApp (whether it touches the executables or not)
• Push changes via WebApp
• Inspect commit (you should see something like mode change 100755 => 100644 script.sh)

As example; here is a commit where this happens: kilyanni/typst-webapp-mode-bug-repro@12fe265

Expected behavior:
Mode should stay unchanged

Reproduction URL

No response

Browsers

Firefox

OS

Linux