Source control undo error

Type: Bug

When trying to discard changes in source control panel, a modal appears then automatically disappears

VS Code version: Code 1.129.1 (8a7abeba6e03ea3af87bfbce9a1b7e48fed567b8, 2026-07-17T15:35:09Z)
OS version: Windows_NT x64 10.0.26200
Modes:

System Info

|Item|Value|
|---|---|
|CPUs|12th Gen Intel(R) Core(TM) i7-1255U (12 x 2611)|
|GPU Status|2d_canvas: enabled
GPU0: VENDOR= 0x8086, DEVICE=0x46a8 [Intel(R) Iris(R) Xe Graphics], DRIVER_VENDOR=Intel, DRIVER_VERSION=31.0.101.4255 *ACTIVE*
GPU1: VENDOR= 0x1414, DEVICE=0x008c [Microsoft Basic Render Driver], DRIVER_VERSION=10.0.26100.8875
Machine model name:
Machine model version:
direct_rendering_display_compositor: disabled_off_ok
gpu_compositing: enabled
multiple_raster_threads: enabled_on
opengl: enabled_on
rasterization: enabled
raw_draw: disabled_off_ok
skia_graphite: disabled_off
trees_in_viz: disabled_off
video_decode: enabled
video_encode: enabled
webgl: enabled
webgpu: enabled
webnn: disabled_off|
|Load (avg)|undefined|
|Memory (System)|15.72GB (5.27GB free)|
|Process Argv|--crash-reporter-id 0c25cfbe-a00d-4172-9db0-b5b0f0128090|
|Screen Reader|no|
|VM|0%|
Extensions (53)

Name|Identifier|Author|Version
---|---|---|---
C++ Intellisense|austin.code-gnu-global|austin|0.2.2
BLACKBOXAI #1 AI Coding Agent and Coding Copilot|blackboxapp.blackbox|Blackboxapp|2.8.53
Blackbox Agent - Coding Copilot|blackboxapp.blackboxagent|Blackboxapp|3.7.0
Tailwind CSS IntelliSense|bradlc.vscode-tailwindcss|bradlc|0.16.0
Simple React Snippets|burkeholland.simple-react-snippets|burkeholland|1.2.8
EJS language support|digitalbrainstem.javascript-ejs-support|DigitalBrainstem|1.3.3
Prettier - Code formatter|esbenp.prettier-vscode|esbenp|12.4.0
Expo Tools|expo.vscode-expo-tools|expo|1.6.3
file-icons|file-icons.file-icons|file-icons|1.1.0
Code Runner|formulahendry.code-runner|formulahendry|0.12.2
MySQL|formulahendry.vscode-mysql|formulahendry|0.5.0
C/C++ Runner|franneck94.c-cpp-runner|franneck94|9.5.0
Rainbow CSV|mechatroner.rainbow-csv|mechatroner|3.24.1
Container Tools|ms-azuretools.vscode-containers|ms-azuretools|2.4.5
Docker|ms-azuretools.vscode-docker|ms-azuretools|2.0.0
Python Debugger|ms-python.debugpy|ms-python|2026.6.0
Python|ms-python.python|ms-python|2026.4.0
Pylance|ms-python.vscode-pylance|ms-python|2026.3.1
Python Environments|ms-python.vscode-python-envs|ms-python|1.36.0
Jupyter|ms-toolsai.jupyter|ms-toolsai|2025.9.1
Jupyter Keymap|ms-toolsai.jupyter-keymap|ms-toolsai|1.1.2
Jupyter Notebook Renderers|ms-toolsai.jupyter-renderers|ms-toolsai|1.3.0
Jupyter Cell Tags|ms-toolsai.vscode-jupyter-cell-tags|ms-toolsai|0.1.9
Jupyter Slide Show|ms-toolsai.vscode-jupyter-slideshow|ms-toolsai|0.1.6
Dev Containers|ms-vscode-remote.remote-containers|ms-vscode-remote|0.466.0
CMake Tools|ms-vscode.cmake-tools|ms-vscode|1.23.52
C/C++ DevTools|ms-vscode.cpp-devtools|ms-vscode|0.5.13
C/C++|ms-vscode.cpptools|ms-vscode|1.33.6
C/C++ Extension Pack|ms-vscode.cpptools-extension-pack|ms-vscode|1.5.1
PowerShell|ms-vscode.powershell|ms-vscode|2025.4.0
JavaScript and TypeScript Nightly|ms-vscode.vscode-typescript-next|ms-vscode|6.0.20260416
Codex – OpenAI’s coding agent|openai.chatgpt|openai|26.803.41515
Java|oracle.oracle-java|Oracle|26.0.1
Thunder Client|rangav.vscode-thunder-client|rangav|2.41.1
Language Support for Java(TM) by Red Hat|redhat.java|redhat|1.55.0
YAML|redhat.vscode-yaml|redhat|1.24.0
Live Server|ritwickdey.liveserver|ritwickdey|5.7.10
React snippets|runningcoder.react-snippets|runningcoder|0.1.3
CPH LeetParse - Competitive Programming Helper|sarvesh0955.cph-leetparse|Sarvesh0955|1.0.0
ejs Snippets|taodongwu.ejs-snippets|TaodongWu|0.1.0
vscode-pdf|tomoki1207.pdf|tomoki1207|1.2.2
CMake|twxs.cmake|twxs|0.0.17
TypeScript 7|typescriptteam.native-preview|TypeScriptTeam|0.20260708.2
CodeLLDB|vadimcn.vscode-lldb|vadimcn|1.12.2
IntelliCode API Usage Examples|visualstudioexptteam.intellicode-api-usage-examples|VisualStudioExptTeam|0.2.8
IntelliCode|visualstudioexptteam.vscodeintellicode|VisualStudioExptTeam|1.3.1
Gradle for Java|vscjava.vscode-gradle|vscjava|3.18.0
Debugger for Java|vscjava.vscode-java-debug|vscjava|0.59.0
Project Manager for Java|vscjava.vscode-java-dependency|vscjava|0.27.6
Extension Pack for Java|vscjava.vscode-java-pack|vscjava|0.31.1
Test Runner for Java|vscjava.vscode-java-test|vscjava|0.46.0
Maven for Java|vscjava.vscode-maven|vscjava|0.45.3
WakaTime|wakatime.vscode-wakatime|WakaTime|30.2.1

A/B Experiments

```
vsliv368:30146709
binariesv615:30325510
nativeloc1:31344060
dwcopilot:31170013
dwoutputs:31242946
copilot_t_ci:31333650
e5gg6876:31282496
pythonrdcb7:31342333
6518g693:31463988
aj953862:31281341
envsactivate1:31551504
gh487529:31544284
cloudbuttont:31379625
3efgi100_wstrepl:31403338
ec5jj548:31422691
cp_cls_t_966_ss:31526232
4je02754:31466945
c3h7c220:31478652
cp_cls_c_1081:31454833
conptydll_true:31498968
e9c30283:31461165
test_treatment2:31471001
46204921:31447328
idci7584:31464702
e3e4d672:31494082
ei9d7968:31496641
chat:31457767
7e187181:31503455
githubstableflight:31469463
ghj88844:31499326
ddid_t:31478206
hmra_i5g22:31518061
7df3h592:31512476
cp_cls_t_1082:31535311
logging_enabled_new:31498466
j0d79568:31499440
jb_cp_cls_t_632:31543129
56dj4588:31512888
32d76977:31512328
ha629193:31508444
cdk-lw-on:31524445
f9bf7985:31543584
jh5f2457_c:31540921
jbcp_cls_pctr_t:31531130
61138546:31518536
cp_intellij_t_nes:31548657
gf14b233:31526830
ahp-both-windows:31556933
h561g132:31533256
sessions_3:31532893
ihg5j128:31534457
f412h606:31551416
9gg7f176:31542112
enable_editor_pane_layout:31554332
allow-none:31555437
fd5dc207:31551400
8hc4g144:31558143
1532g621_copy:31554320
d4c76da2:31557006
treatment-23-1:31555779
unuse_dynamic_mcp:31555281

```