Microsoft/vscode

Git: deletion marker in the gutter disappears when folding adjacent regions

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#246,388 opened on Apr 12, 2025

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 (0 comments) (0 reactions) (1 assignee)TypeScript (74,848 stars) (10,221 forks)batch import
bugeditor-foldinghelp wanted

Description

Does this issue occur when all extensions are disabled?: Yes

  • VS Code Version: 1.99.2 (user setup) 4949701c880d4bdb949e3c0e6b400288da7f474b
  • OS Version: Windows_NT x64 10.0.26100

Steps to Reproduce:

  1. create a file test.html with the contents below in a Git repository
  2. stage the file
  3. delete the between line
  4. fold region 1
<!-- #region 1 -->
1
<!-- #endregion -->
between
<!-- #region 2 -->
2
<!-- #endregion -->

Expected: regardless of whether region 1 and/or 2 are folded, the red marker in the gutter is always visible, as the deleted line is part of neither region Actual: when region 1 is folded, the red marker is invisible

Contributor guide

Tech stack
typescript
Domain
frontend
Issue type
bug
DifficultyEstimated implementation difficulty for a new contributor, from 1 for very small changes to 5 for expert-level work.
2
Estimated timeA rough time range for an experienced contributor to investigate, implement, test, and prepare a pull request.
half day
Activity statusHow available the issue appears right now: fresh, active, stale, blocked, or waiting on maintainer input.
blocked
ClarityHow clearly the issue explains the expected change, acceptance criteria, and next step.
clear
Prerequisites
TypeScript basicsVS Code extension concepts
Newbie friendlinessA 1-100 score estimating how approachable this issue is for first-time contributors.
45
Research direction
Investigate the Git gutter implementation in the VS Code source, specifically the `GitGutter` or `Gutter` components. Look at how deletion markers are rendered and how folding regions affect their visibility. The issue suggests that when region 1 is folded, the red marker for a deleted line outside the region disappears. Reproduce the steps and identify the code responsible for the marker's visibility during folding state changes.