Multiple @supports break rest of file

[alexr00]

Type: Bug

Using multiple @supports rules in a subtree produces the wrong syntax highlight for the rest of the file

VS Code version: Code - Insiders 1.99.0-insider (c1fb4c3983bcc28e63dd159dbbb2ea98d352d33e, 2025-03-12T08:28:07.410Z)
OS version: Windows_NT x64 10.0.22631
Modes:

System Info

Item	Value
CPUs	13th Gen Intel(R) Core(TM) i9-13980HX (32 x 2419)
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: enabled vulkan: disabled_off webgl: enabled webgl2: enabled webgpu: enabled webnn: disabled_off
Load (avg)	undefined
Memory (System)	31.63GB (16.75GB free)
Process Argv	--folder-uri file:///c%3A/Users/perso/Documents/GitHub/zen-hordes --crash-reporter-id b8e8fe7d-bf65-4d27-8da9-98156448a36f
Screen Reader	no
VM	0%

Extensions (51)

Extension	Author (truncated)	Version
vscode-css-formatter	aes	1.0.2
markdown-preview-github-styles	bie	2.1.0
postcss	css	1.0.9
dbclient-jdbc	cwe	1.3.9
vscode-database-client2	cwe	8.2.0
vscode-eslint	dba	3.0.13
es7-react-js-snippets	dsz	4.4.3
gitlens	eam	2025.3.1205
EditorConfig	Edi	0.17.2
apacheconf-snippets	eim	1.4.0
prettier-vscode	esb	11.0.0
code-runner	for	0.12.2
copilot	Git	1.283.1430
copilot-chat	Git	0.26.2025031202
vscode-github-actions	git	0.27.1
vscode-pull-request-github	Git	0.107.2025031204
gc-excelviewer	Gra	4.2.63
vscode-edit-csv	jan	0.11.2
fontawesome-autocomplete	Jan	1.3.2
es6-string-markdown	jeo	1.1.2
svg	joc	1.5.4
react-typescript-boilerplate	Mag	0.2.2
copy-json-path	Mal	1.4.0
rainbow-csv	mec	3.18.0
meteor-toolbox	met	1.3.3
code-beautifier	mic	2.3.3
easy-less	mrc	2.0.2
vscode-apache	mrm	1.2.0
vscode-less	mrm	0.6.3
vscode-scss	mrm	0.10.0
vshaxe	nad	2.34.1
color-highlight	nau	2.8.0
indent-rainbow	ode	8.3.1
material-icon-theme	PKi	5.20.0
prisma	Pri	6.5.0
bbcode	ric	0.0.2
code-stats-vscode	riu	1.0.18
comment-ts	sal	1.0.21
scala	sca	0.5.9
java-generate-setters-getters	soh	8.0.1
auto-correct	syg	0.2.2
es6-string-html	Tob	2.17.0
pdf	tom	1.2.2
lorem-ipsum	Tyr	1.3.1
vscodeintellicode	Vis	1.3.2
vscode-gradle	vsc	3.16.2024111106
vscode-java-debug	vsc	0.58.2025022807
vscode-java-dependency	vsc	0.24.1
vscode-java-pack	vsc	0.29.2024091906
vscode-maven	vsc	0.44.2024072906
html-css-class-completion	Zig	1.20.0

A/B Experiments

vsliv368:30146709
vspor879:30202332
vspor708:30202333
vspor363:30204092
pythonvspyt551:31249597
vscod805cf:30301675
py29gd2263:31024238
c4g48928:30535728
2i9eh265:30646982
962ge761:30841072
dsvsc014:30777825
dsvsc015:30821418
h48ei257:31000450
pythontbext0:30879054
cppperfnew:30980852
pythonait:30973460
dwnewjupyter:31046869
nativerepl1:31134653
pythonrstrctxt:31093868
nativeloc1:31118317
e80f6927:31120813
iacca1:31150324
notype1:31143044
dwcopilot:31158714
c3hdf307:31184662
6074i472:31201624
dwoutputs:31242946
customenabled:31248079
hdaa2157:31222309
copilot_t_ci:31222730
f27dg485:31233432
g012b348:31231168
jda6j935:31233686
copilothoveroff:31247700
pythoneinst12:31251391
treesitterini:31258269
bgtreat:31252123
fh1c7952:31247580
6h6a5794:31257591
5e5g2996:31258009
563cc122:31251109
hb9j0513:31256344
pythonpulldiag:31258010

Originally from @Zenoo in microsoft/vscode#243404 (comment)