Agents window "Changes" stuck

Type: Bug

Changes is the default panel on the right side of agents window, and the default option is "branch changes"
For some reason, one of my project cannot sync with origin, it gots 4700+ files, 700k+ lines diff.
And the changes panel could not respond.

VS Code version: Code 1.138.0 (7debcd0e2acdea1c52de81bf9ee1620444407dda, 2026-09-15T07:24:32Z)
OS version: Windows_NT x64 10.0.26200
Modes:

System Info

|Item|Value|
|---|---|
|CPUs|11th Gen Intel(R) Core(TM) i7-11850H @ 2.50GHz (16 x 2496)|
|GPU Status|2d_canvas: enabled
GPU0: VENDOR= 0x8086, DEVICE=0x9a60 [Intel(R) UHD Graphics], DRIVER_VENDOR=Intel, DRIVER_VERSION=32.0.101.7088 *ACTIVE*
GPU1: VENDOR= 0x10de, DEVICE=0x1f97 [NVIDIA GeForce MX450], DRIVER_VERSION=32.0.15.7344
GPU2: VENDOR= 0x1414, DEVICE=0x008c [Microsoft Basic Render Driver], DRIVER_VERSION=10.0.26100.9278
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)|15.73GB (1.06GB free)|
|Process Argv|--crash-reporter-id bacc2489-8205-49a8-9e76-5719c67c0955|
|Screen Reader|no|
|VM|0%|
Extensions (30)

Name|Identifier|Author|Version
---|---|---|---
ESLint|dbaeumer.vscode-eslint|dbaeumer|3.0.34
Permute Lines|earshinov.permute-lines|earshinov|1.1.0
HTML CSS Support|ecmel.vscode-html-css|ecmel|2.0.14
EditorConfig|editorconfig.editorconfig|EditorConfig|0.18.2
Auto Rename Tag|formulahendry.auto-rename-tag|formulahendry|0.1.10
Code Runner|formulahendry.code-runner|formulahendry|0.12.2
Selected Lines Count|gurumukhi.selected-lines-count|gurumukhi|1.4.0
Text Pastry|jkjustjoshing.vscode-text-pastry|jkjustjoshing|1.3.1
Better YAML Formatter|kennylong.kubernetes-yaml-formatter|kennylong|2.5.0
Rainbow CSV|mechatroner.rainbow-csv|mechatroner|3.24.1
Git Graph|mhutchie.git-graph|mhutchie|1.30.0
Playwright Test for VSCode|ms-playwright.playwright|ms-playwright|1.1.19
Python Environments|ms-python.vscode-python-envs|ms-python|1.36.0
C/C++ DevTools|ms-vscode.cpp-devtools|ms-vscode|0.6.18
PowerShell|ms-vscode.powershell|ms-vscode|2025.4.0
Codex – OpenAI’s coding agent|openai.chatgpt|openai|26.908.40401
Paste JSON as Code|quicktype.quicktype|quicktype|23.0.170
Paste Markdown|r.paste-markdown|R|0.0.3
XML|redhat.vscode-xml|redhat|0.29.3
Redis for VS Code|redis.redis-for-vscode|Redis|1.4.0
SQL Formatter VSCode|renesaarsoo.sql-formatter-vsc|ReneSaarsoo|4.2.6
Markdown Auto Space|swhl.markdown-auto-space|SWHL|0.0.9
CBM Navigator|sxcooler.cbm-vscode-navigator|sxcooler|0.1.4
AutoHotkey v2 Language Support|thqby.vscode-autohotkey2-lsp|thqby|3.0.10
vscode-pdf|tomoki1207.pdf|tomoki1207|1.2.2
Vitest|vitest.explorer|vitest|1.52.0
GitHub Copilot modernization|vscjava.migrate-java-to-azure|vscjava|1.23.0
Vue (Official)|vue.volar|Vue|3.3.11
change-case|wmaurer.change-case|wmaurer|1.0.0
Markdown PDF|yzane.markdown-pdf|yzane|2.2.0

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
839jf696:31457053
ec5jj548:31422691
cp_cls_t_966_ss:31526232
4je02754:31466945
c3h7c220:31478652
cp_cls_t_1081:31454832
conptydll_true:31498968
e9c30283:31461165
46204921:31447328
capico_axe_098a3278:31582664
ei9d7968:31496641
chat:31457767
8hig5102:31480529
89g7j272:31518289
i2gc6536:31499202
52612955:31516516
23c7c724:31520045
ddid_c:31478207
hmra_i5g22:31518061
7df3h592:31512476
cp_cls_t_1082:31535311
logging_enabled_new:31498466
j0d79568:31499440
jb_cp_cls_t_632:31543129
748c7209:31512887
32d76977:31512328
ha629193:31508444
jh5f2457_c:31540921
jbcp_cls_pctr_t:31531130
cp_intellij_t_nes:31548657
gf14b233:31526830
ahp-both-windows:31556933
ihg5j128:31534457
9gg7f176:31542112
enable_editor_pane_layout:31569726
allow-none:31555437
ac562147:31564510
c7c27ce7:31554789
1h923230:31564177
treatment-23-1:31555779
unuse_dynamic_mcp:31555281
0d8dfbc3:31570291
a1hcc538:31559322
0c1h4866:31566224
session-archive:31558132
5b8j3302:31564601
autotiers:31584978
mangle-name-control:31572633
signed-out-control:31584138
intellij_nes_preview_t:31580086
39a5d156:31574986
2bfb8b39:31585911
accent:31581110
aw-autom-on:31583758
revealsession_control_7ed7e840:31582193
7g328426_fixed:31584544
codex-agent-host-stable-control:31585316
66c8a39e-e7a5-4b4c-a3c0-41b161c795c4:31586113

```