Markdown R code chunk inserts <> upon <

System details:

Positron and OS details:

Positron Version: 2024.09.0 (Universal) build 27
Code - OSS Version: 1.92.0
Commit: d996153f3be6bcc9af460300e61103425323b973
Date: 2024-09-11T02:38:46.408Z
Electron: 30.1.2
Chromium: 124.0.6367.243
Node.js: 20.14.0
V8: 12.4.254.20-electron.0
OS: Darwin arm64 23.6.0

Interpreter details:

NA.

Describe the issue:

While editing an R code block in a simple Markdown document, the <> character sequence is inserted when < is input. This means that an additional character is injected into the document any time an R variable assignment is typed.

Steps to reproduce the issue:

Starting with the simple document:

```r

```

Within the code block, attempt to type v <- 42. The document will contain v <- 42> (assuming you do not intentionally delete the trailing > that was added).

Expected or desired behavior:

What I type is what I get and there is no automatic addition of < when in an R code block.

This is not exclusive to R. The same insertion happens in Python code blocks, too. Try to use the less-than symbol in a Python expression, for example. You'll have an additional > character.

Here is an R and Python example before cleaning up the extraneous characters.

Were there any error messages in the UI, Output panel, or Developer Tools console?

No source files or tests are named. Reproduce the issue in a Markdown document with R and Python code blocks, checking the v <- 42 case and a Python less-than expression; done means typing < no longer inserts an extra >.