Comments not possible to save within a submodule

[DFelten]

• Extension version: Latest version (0.92.0)
• VSCode Version: 1.92.0-insider
• OS: Darwin arm64 23.5.0

Steps to Reproduce:

We have a project with two Git repositories. A main repository and a submodule. As soon as both repositories on the checked out branch have a pull request, there are problems. It's not possible to save a comment within the submodule. It's a similar issue than before in this issue (#5784).

After writing and saving a comment, nothing happens. The review did not appear in the overview. When trying to send the review, an error appears:

Submitting review failed. GraphQL error: Could not comment for pull request review. You need to leave a comment indicating the requested changes.

[DFelten]

After a restart of VSCode the same error message as before in this closed issue (#5784) appears after writing a comment:

Creating comment failed: Error: File has been deleted.