<!-- Thanks for taking the time to file an issue! Take a look at our guidance on feedback and issues: https://positron.posit.co/feedback.html General questions about Positron should start in GitHub Discussions rather than as an issue: https://github.com/posit-dev/positron/discussions To avoid creating duplicates, please take the time to search our existing issues: https://github.com/posit-dev/positron/issues If you find an existing bug or feature request, please gives it a thumbs-up reaction or additional information to help us prioritize the issue. --> ## System details: #### Positron and OS details: Positron Version: 2026.02.0 build 104 Code - OSS Version: 1.106.0 Commit: 181dd38c0e5e3ebb014729add1b96068959a8819 Date: 2026-01-23T07:25:20.767Z Electron: 37.7.0 Chromium: 138.0.7204.251 Node.js: 22.20.0 V8: 13.8.258.32-electron.0 OS: Linux x64 6.14.0-36-generic #### Session details: R 4.5.0 ## Describe the issue: Inserting/removing breakpoints by clicking on the left of the line number works fine. However, using the "Shift+F9" shortcut to insert one at the current line also adds the breakpoint symbol at the end of the line, which is unexpected. ## Steps to reproduce the issue: Take any R code, press "Shift + F9" to insert a breakpoint. https://github.com/user-attachments/assets/62fd3613-87d5-4ae1-9cc2-6f905b89d90f ## Expected or desired behavior: No breakpoint symbol inserted at the end of the line. ## Were there any error messages in the UI, Output panel, or Developer Tools console? <!-- - Open the Developer Tools console by running the `Developer: Toggle Developer Tools` command from the Command Palette - Open the relevant Output Channel logs by utilizing this guide: https://positron.posit.co/troubleshooting.html --> /