Complete from suggest voids following characters

[AnrDaemon]

Type: Bug

The #198793 become more and more frequent in my daily work. More often in HTML files, but it started to creep into other type of code.

I've assembled an example workspace to reproduce the issue.

After a number of attempts, I've managed to reproduce it in VS Code without extensions, using only textual suggestions, as hinted by @ecmel in ecmel/vscode-html-css#278 (comment)

VS Code version: Code 1.85.2 (8b37750, 2024-01-18T06:40:10.514Z)
OS version: Windows_NT x64 10.0.19045
Modes:

System Info

Item	Value
CPUs	Intel(R) Core(TM) i5-3550 CPU @ 3.30GHz (4 x 3303)
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 video_decode: enabled video_encode: enabled vulkan: disabled_off webgl: enabled webgl2: enabled webgpu: enabled
Load (avg)	undefined
Memory (System)	15.96GB (8.07GB free)
Process Argv
Screen Reader	no
VM	0%

[vscodenpa]

Thanks for creating this issue! It looks like you may be using an old version of VS Code, the latest stable release is 1.86.1. Please try upgrading to the latest version and checking whether this issue remains.

Happy Coding!

[vscodenpa]

Thanks for creating this issue! We figured it's missing some basic information or in some other way doesn't follow our issue reporting guidelines. Please take the time to review these and update the issue.

Happy Coding!

[jrieken]

After a number of attempts, I've managed to reproduce it in VS Code without extensions,

How? Please share the exact steps

[AnrDaemon]

ecmel/vscode-html-css#278 (comment)

Exact steps. With video. And confirmation that's not only me observing this issue.

There's obviously some kind of a race, because if you do it REAL SLOW, the issue is hard to reproduce.

[jrieken]

Sorry, I don't know what ecmel is about but it doesn't seem like "just vscode without extensions", so please provide a steps here and a simple copy-paste friendly code sample

[AnrDaemon]

There's no copy-paste friendly code sample, thus the example archive.
The smaller the sample, the harder it is to trigger condition.
But with a HTML file of 2k lines, it's nearly always happens.
Just extract the archive, open in the Insiders build and repeat the steps in the video

2024-01-27_22-01-05.mp4

vscode-html-css#278.tar.gz

[ecmel]

Please check: #198793

[vscodenpa]

Hey @jrieken, this issue might need further attention.

@AnrDaemon, you can help us out by closing this issue if the problem no longer exists, or adding more information.

[AnrDaemon]

It become more severe in the latest versions of VS Code. So, awaiting the fix. Eagerly.

[vs-code-engineering]

Hey @jrieken, this issue might need further attention.

@AnrDaemon, you can help us out by closing this issue if the problem no longer exists, or adding more information.

[AnrDaemon]

It more than exists, it is easily the most encountered issue in daily work with HTML.

[AnrDaemon]

It is suggested that the behavior could be related to editor.quickSuggestions option.
However, it shows as "modified elsewhere" in my instance of VS Code in both User and Workspace configurations, and there's no mention of it in any of the respective JSON files either.

[jonnomk]

This happens to me every day. Searching for a solution.

[matthaliski]

I'm getting this as well. The first time it happened, it slipped by in a commit, and I found it live on the site. I've been paying close attention ever since.

[jrieken]

• ? What do folks have configured for editor.suggest.insertMode, esp also check if you have a more specific configuration for html.
• ? When a completion overtypes, what does its detail show (press cmd+/ on a completion)

[jonnomk]

I have 'insert' configured for editor.suggest.insertMode. Here's an example of the issue.

20241209-1623-52.6149592.mp4

[jrieken]

I have 'insert' configured for editor.suggest.insertMode.

Did you also explicitly change this for html which has this configured to be replace

Here's an example of the issue.

I believe that you are seeing this issue. But also believe that I don't reproduce this and that I cannot base a fix on a recording, only on reproducible steps.

[jonnomk]

I haven't explicitly changed any settings for HTML. Actually, just to see what happens, I deleted all the settings from my settings.json file and the issue still occurs.

[jrieken]

what extensions do you have installed?

[jonnomk]

I have:

SonarQube
Angular language service
Angular snippets
cognitive-complexity-show
Docker
Easy LESS
EditorConfig
ESLint
Copilot
Copilot chat
JavaScript (ES) code snippets
Rainbow CSV
Sort JSON objects
Minify

Not too many :)

[jrieken]

@jonnomk try without them, use bisect

All extensions execute together on a single nodejs process, so in order to narrow down the possible problematic extension, please try the following:

• run F1 > Help: Start Extension Bisect
• (this will restart VS Code with half of your extensions disabled)
• try to do the steps which reproduce the problem
• if the problem reproduces, click "This is bad" (this narrows down the problematic extension to the half which was enabled)
• if the problem does not reproduce, click "Good now" (this narrows down the problematic extension to the half which was disabled)
• these steps will repeat until the problematic extension is found

initial	step	final

[jonnomk]

Hi. That's an interesting tool, but it wasn't able to whittle down the problematic extension, even though during the process the problematic behaviour stopped.

I performed my own little test and can confirm it's the Angular Language Service that causes the issue.

Here's a video of it working as expected with the extension disabled:

20241209-1710-13.5388656.mp4

...and here it is with it enabled:

20241209-1714-02.7726089.mp4

Thanks for your time. Hopefully this helps others.

[vs-code-engineering]

This issue is caused by an extension, please file it with the repository (or contact) the extension has linked in its overview in VS Code or the marketplace for VS Code. See also our issue reporting guidelines. If you don't know which extension is causing the problem, you can run Help: Start extension bisect from the command palette (F1) to help identify the problem extension.

Happy Coding!

[AnrDaemon]

It can be reproduced without any additional extensions, just not as reliable.
There's clearly a timing issue suggesting a race condition somewhere.

[ecmel]

@AnrDaemon I agree, this is not related with any extension as demonstrated on ecmel/vscode-html-css#278

[AnrDaemon]

More specifically, #198793