Multiline find and replace with capture groups don't work

[jonopus]

Issue Type: Bug

Multiline search and replace with capture groups results in literal $1$2.

Search:
(.)(\r?\n)(.)

Replace:
$1$2$3

Result:
$1$2$3

VS Code version: Code 1.38.1 (b37e54c, 2019-09-11T13:31:32.854Z)
OS version: Darwin x64 18.2.0

System Info

Item	Value
CPUs	Intel(R) Core(TM) i7-7920HQ CPU @ 3.10GHz (8 x 3100)
GPU Status	2d_canvas: enabled flash_3d: enabled flash_stage3d: enabled flash_stage3d_baseline: enabled gpu_compositing: enabled multiple_raster_threads: enabled_on native_gpu_memory_buffers: enabled oop_rasterization: disabled_off protected_video_decode: unavailable_off rasterization: enabled skia_deferred_display_list: disabled_off skia_renderer: disabled_off surface_synchronization: enabled_on video_decode: enabled viz_display_compositor: disabled_off webgl: enabled webgl2: enabled
Load (avg)	1, 2, 2
Memory (System)	16.00GB (1.75GB free)
Process Argv	-psn_0_53261
Screen Reader	no
VM	0%

Extensions (8)

Extension	Author (truncated)	Version
vscode-ember	emb	0.2.0
json-tools	eri	1.0.2
prettier-vscode	esb	2.3.0
macros	ged	1.2.1
ember-related-files	jos	1.5.0
sublime-keybindings	ms-	4.0.3
preview-vscode	sea	2.0.3
change-case	wma	1.0.0

[vscodebot]

(Experimental duplicate detection)
Thanks for submitting this issue. Please also check if it is already covered by an existing one, like:

• Multiline Find & Replace finds multiline string but substitutes $1 literally when replacing (#80732)
• Highlight capturing groups when searching using regex (#45665)
• Regex Search and Replace All capture groups don't work when regex includes newline (#80667)
• Multiple Search and Replace at once. (#80926)
• Multiline Find and Replace Support (#39391)

[ArturoDent]

See #81502 and others.

[chrmarti]

/duplicate #80667

[vscodebot]

Thanks for creating this issue! We figured it's covering the same as another one we already have. Thus, we closed this one as a duplicate. You can search for existing issues here. See also our issue reporting guidelines.

Happy Coding!