Github Copilot

Type: Bug

Pressing backspace while writing in a chat in github copilot actually ends up sending a backspace to the currently open file in VS Code. so when you type it will type into gh copilot chat, but when you press a backspace it goes to the the file you had open and by the time you figure it out, you have erased some lines of code.

VS Code version: Code 1.135.0 (08d4889f9ec4a1685d257b9b95de036c8e1ce1e5, 2026-08-25T14:26:52Z)
OS version: Darwin arm64 25.5.0
Modes:

System Info

|Item|Value|
|---|---|
|CPUs|Apple M1 Pro (8 x 2400)|
|GPU Status|2d_canvas: enabled
GPU0: VENDOR= 0x106b [Google Inc. (Apple)], DEVICE=0x0000 [ANGLE (Apple, ANGLE Metal Renderer: Apple M1 Pro, Version 26.5.2 (Build 25F84))], DRIVER_VENDOR=Apple, DRIVER_VERSION=26.5.2 *ACTIVE*
Machine model name: MacBookPro
Machine model version: 18.3
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: enabled_on
trees_in_viz: disabled_off
video_decode: enabled
video_encode: enabled
webgl: enabled
webgpu: enabled
webnn: disabled_off|
|Load (avg)|114, 70, 42|
|Memory (System)|16.00GB (0.13GB free)|
|Process Argv|--crash-reporter-id 512c0536-e84c-4ae9-a955-176a1c05c79f|
|Screen Reader|no|
|VM|0%|
Extensions (14)

Name|Identifier|Author|Version
---|---|---|---
GitHub Actions|github.vscode-github-actions|github|0.32.3
GitHub Pull Requests|github.vscode-pull-request-github|GitHub|0.162.0
Draw.io Integration|hediet.vscode-drawio|hediet|1.9.0
LLDB DAP|llvm-vs-code-extensions.lldb-dap|llvm-vs-code-extensions|0.4.1
Rainbow CSV|mechatroner.rainbow-csv|mechatroner|3.24.1
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
WSL|ms-vscode-remote.remote-wsl|ms-vscode-remote|0.104.3
Notepad++ keymap|ms-vscode.notepadplusplus-keybindings|ms-vscode|1.0.7
Chat Customizations Evaluations|ms-vscode.vscode-chat-customizations-evaluations|ms-vscode|1.0.8
VS Code Speech|ms-vscode.vscode-speech|ms-vscode|0.16.0
Svelte for VS Code|svelte.svelte-vscode|svelte|110.3.1
Swift|swiftlang.swift-vscode|swiftlang|2.16.7

A/B Experiments

```
vsliv368cf:30146710
binariesv615:30325510
nativeloc1:31344060
dwcopilot:31170013
dwoutputs:31242946
copilot_t_ci:31333650
e5gg6876:31282496
pythonrdcb7:31342333
6518g693:31463988
aj953862:31281341
82j33506:31327384
envsactivate1:31551504
cloudbuttont:31379625
3efgi100_wstrepl:31403338
56b7f661:31457055
ec5jj548:31422691
diffpatch-lysithea-24-production:31574143
cp_cls_t_966_ss:31526232
4je02754:31572277
c3h7c220:31478652
ge8j1254_inline_auto_hint_haiku:31490510
cp_cls_c_1081:31454833
conptydll_true:31498968
e9c30283:31461165
c9b86496:31447327
capico_a_098a3278:31555650
ei9d7968:31496641
nes-extended-on:31455476
chat:31457767
8hig5102:31480529
89g7j272:31518289
i2gc6536:31499202
52612955:31516516
h08i8180_copy:31475368
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
a1ije391_t:31540920
jbcp_cls_pctr_t:31531130
61138546:31518536
cp_intellij_t_nes:31548657
gf14b233:31526830
ahp-both-windows:31556933
sessions_5:31532894
ihg5j128:31534457
f412h606:31551416
7g2b5551:31542111
sandbox-ui-on-2:31543161
enable_editor_pane_layout:31569726
allow-none:31555437
36h42362:31564511
c7c27ce7:31554789
1h923230:31564177
1532g621_copy:31554320
treatment-23-1:31555779
unuse_dynamic_mcp:31555281
0d8dfbc3:31570291
switchtoauto:31559321
0c1h4866:31566224
vrbsty_fls:31561059
session-archive:31558132
5b8j3302:31564601
mangle-name-control:31572633
lunaclean:31573760

```