Always insert (don't replace suffix) when completing?

[barries]

How can I prevent replacing the next word when, for example, inserting a new parameter or list element before an existing one?

For example (\| is the insert mode cursor):

Step	Code
Before	show_label(|value)
Autocomplete Color::RED
Current Outcome	show_label(Color::RED|)
Desired Outcome	show_label(Color::RED|value)
Type ,	show_label(Color::RED, |value)

I'm not sure if this is a blink relevant question because googling around, I see hints that it might be LSP specific, or perhaps nvim completion; what makes me ask here is that nvim-cmp seemed to have a configurable ConfirmBehavior.Insert action, and I'd like this to be configured the same across the various languages I'm using--in other words, this feels very much like it should be an "editor setting" or override rather, than hoping that each LSP I use supports an insert-only instead of replace-suffix mode; and so I don't have to dig through each new LSP's configuration options to find if/how to enable it. However, that may be a tall order...

As an aside--blink is fantastic. It really takes a lot of the rough edges off the built-in and older approaches.

[doulighan]

You ever get an answer? I'm having kind of the opposite problem with Copilot completions causing things like:

console.log(|);
// completion: "myCompletedValue);"
console.log(myCompletedValue);|);

The end of a line is always duplicated, it used to be that some part of the toolchain understood when to replace characters. Not sure where I need to look to configure this.

[barries]

Nope. It may be LSP dependent, it's intermittent and I haven't focused on it enough over enough languages to see if there's a pattern.

[doulighan]

Yeah it looks like InsertReplaceEdit LSP command might have something to do with it. But I'm at a loss as to why it was working last week and not today.