copilot chat `#changes` always fail with `Invalid Input`

[scarf005]

Type: Bug

1. go to copilot chat view
2. ask something with #changes added
3. copilot chat always fails with Invalid Input

VS Code version: Code 1.98.0 (6609ac3d66f4eade5cf376d1cb76f13985724bcb, 2025-03-04T21:06:18.612Z) OS version: Linux x64 6.13.5-200.fc41.x86_64 Modes:

System Info

Item	Value
CPUs	AMD Ryzen 5 5600G with Radeon Graphics (12 x 4315)
GPU Status	2d_canvas: enabled canvas_oop_rasterization: enabled_on 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 video_decode: enabled video_encode: disabled_software vulkan: disabled_off webgl: enabled webgl2: enabled webgpu: disabled_off webnn: disabled_off
Load (avg)	1, 2, 2
Memory (System)	30.68GB (6.51GB free)
Process Argv	.
Screen Reader	no
VM	0%
DESKTOP_SESSION	plasma
XDG_CURRENT_DESKTOP	KDE
XDG_SESSION_DESKTOP	KDE
XDG_SESSION_TYPE	wayland

Extensions (128)

Extension	Author (truncated)	Version
vscode-userscript	adp	1.3.2
open-folder-in-explorer	adr	1.2.0
TabOut	alb	0.2.2
pug	ama	1.0.1
tsl-problem-matcher	amo	0.6.2
vscode-subtitles	ast	0.4.0
brainfuck-syntax	att	0.0.1
github-markdown-preview	bie	0.3.0
jsdoc-markdown-highlighting	bie	0.0.1
lit-html	bie	1.11.1
markdown-checkbox	bie	0.4.0
markdown-emoji	bie	0.3.1
markdown-footnotes	bie	0.1.1
markdown-mermaid	bie	1.27.0
markdown-preview-github-styles	bie	2.1.0
markdown-yaml-preamble	bie	0.1.0
vscode-fish	bma	1.0.38
mermaid-markdown-syntax-highlighting	bpr	1.7.0
ruff	cha	2025.14.0
cmake-format	che	0.6.11
vscode-astyle	chi	0.9.0
path-intellisense	chr	2.10.0
package-json-upgrade	cod	3.1.0
gitignore	cod	0.10.0
doxdocgen	csc	1.4.0
shebang-language-associator	dav	1.4.0
vscode-deno	den	3.43.5
dhall-lang	dha	0.0.4
vscode-dhall-lsp-server	dha	0.0.4
dprint	dpr	0.16.4
vscode-generate-getter-setter	DSK	0.5.0
gitlens	eam	16.3.2
EditorConfig	Edi	0.17.1
file-icons	fil	1.1.0
dependi	fil	0.7.13
shell-format	fox	7.2.5
godot-tools	gee	2.4.0
copilot	Git	1.277.0
copilot-chat	Git	0.25.0
vscode-github-actions	git	0.27.1
vscode-pull-request-github	Git	0.107.2025030604
vscode-graphql	Gra	0.13.0
vscode-graphql-syntax	Gra	1.3.8
vscode-systemd-support	han	3.0.0
debug-visualizer	hed	2.4.0
crontab-syntax-highlight	hog	0.0.2
Ionide-fsharp	Ion	7.25.5
vscode-env	Iro	0.1.0
vscode-codeowners	jas	1.1.1
better-cpp-syntax	jef	1.27.1
better-shellscript-syntax	jef	1.10.0
es6-string-markdown	jeo	1.1.2
nix-ide	jno	0.4.12
svg	joc	1.5.4
gruvbox-material-icon-theme	Jon	1.1.5
vscode-gutter-preview	kis	0.32.2
vscode-package-json-inspector	kri	0.2.0
vscode-clangd	llv	0.1.33
color-picker	Mar	1.0.0
marp-vscode	mar	3.1.0
git-graph	mhu	1.30.0
auto-commit-msg	Mic	0.27.2
theme-monokai-pro-vscode	mon	2.0.6
language-gettext	mro	0.5.0
vscode-docker	ms-	1.29.4
vscode-language-pack-ko	MS-	1.98.2025030509
csharp	ms-	2.63.32
vscode-dotnet-runtime	ms-	2.2.8
python	ms-	2025.2.0
vscode-pylance	ms-	2025.3.100
jupyter	ms-	2025.2.0
jupyter-keymap	ms-	1.1.2
jupyter-renderers	ms-	1.1.0
vscode-jupyter-cell-tags	ms-	0.1.9
vscode-jupyter-slideshow	ms-	0.1.6
remote-containers	ms-	0.401.0
remote-ssh	ms-	0.118.0
remote-ssh-edit	ms-	0.87.0
vscode-remote-extensionpack	ms-	0.26.0
live-server	ms-	0.4.15
remote-explorer	ms-	0.4.3
remote-server	ms-	1.5.2
vscode-typescript-next	ms-	5.9.20250306
export-typescript	msc	0.4.2
linux-desktop-file	nic	0.0.21
vscode-mogami	nin	0.0.42
vscode-twoslash-queries	Ort	1.5.0
inline-html	pus	0.3.10
sqlite-viewer	qwt	0.10.2
diff	raf	0.0.1
vscode-thunder-client	ran	2.34.2
vscode-yaml	red	1.17.0
schemastore	rem	1.0.218
llvm-ir	rev	1.0.5
llvm	RRe	0.2.0
rust-analyzer	rus	0.4.2333
vscode-coverage-gutters	rya	2.13.0
scala	sca	0.5.9
metals	sca	1.47.0
uridecode	sry	0.3.6
vscode-standard	sta	2.1.3
lua	sum	3.13.6
ninja	sur	0.0.1
rust-pack	Swe	0.3.38
even-better-toml	tam	0.21.2
markdown-links	tch	0.8.0
ayu	tea	1.0.5
open-in-browser	tec	2.0.0
vscode-markdown-paste-image	tel	1.3.1
python-tox	the	1.0.0
shellcheck	tim	0.37.7
cron-explained	tum	1.3.1
vscode-choosealicense	ult	0.9.4
unison	uni	1.2.0
errorlens	use	3.24.0
intellicode-api-usage-examples	Vis	0.2.9
vscodeintellicode	Vis	1.3.2
vscode-conventional-commits	viv	1.26.0
vscode-mermaid-preview	vst	1.6.3
volar	Vue	2.2.8
vscode-wakatime	Wak	25.0.0
vscode-import-cost	wix	3.3.0
pretty-ts-errors	Yoa	0.6.1
gitconfig-lsp	yy0	0.10.2
markdown-all-in-one	yzh	3.6.2
material-theme	zhu	3.19.0
html-css-class-completion	Zig	1.20.0
vscode-open-in-github	ziy	1.3.6

(8 theme extensions excluded)