Copilot removes closing brackets

[ArianeBouchardConformit]

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Bug

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In all code examples below, my current typing cursor is expressed with a pipe character (|).

Let's say I'm writing unit tests, and I type this:

let fakeThis

beforeEach(() => {
   fakeThis = { event:|

Because I have auto-closing brackets enabled (and this is a good thing; I would never want that turned off; please don't tell me to turn it off), at this point, my editor would actually contain this:

let fakeThis

beforeEach(() => {
   fakeThis = { event:|}
})

So far, so good. Everything makes sense. So Copilot would suggest a value for my property. Let's say it's: initial value for event. Then I accept that value. Now my code looks like this:

let fakeThis

beforeEach(() => {
   fakeThis = { event:`initial value for event`|
})

Or this:

let fakeThis

beforeEach(() => {
   fakeThis = { event:`initial value for event`|

I've lost some closing brackets. The number of lost layers of closing brackets varies from time to time (probably depending on how much I've moved in the code prior to typing the current line, which may remove some brackets from "auto-added context") , but it happens anytime I'm still in the context of typing something and there are still closing brackets/parentheses/etc. that were auto-added by the IDE. If I move my cursor elsewhere in the code, write more code, and put my cursor back inside fakeThis and ask Copilot for a suggestion, then usually it WON'T break any more brackets.

The issue has been present for as long as I've used Copilot, and I get complaints from team members left and right asking whether I know how to fix this. And I don't.

System information

• IDE: WebStorm 2024.1.5
• GitHub Copilot 1.4.17.6356
• Windows 11 23H2

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[ArianeBouchardConformit]

Here's another example:

Before accepting the suggestion:

After accepting the suggestion:

note that the closing parenthesis for function it is gone.

Here's another screenshot after having pressed Esc to remove the new Copilot suggestion, for better visibility: