Brackets Snippet deleting chars

[RedCMD]

Brackets Snippet in replace mode deletes char when prefix already exists

Steps to Reproduce:

1. Set editor.suggest.insertMode to replace
2. Create new global snippet workbench.action.openSnippets

{
	"Brackets": {
		"scope": "plaintext",
		"prefix": "()",
		"body": "()",
		"description": "Set `editor.suggest.insertMode` to `replace`\nWhen `()` already exists, the snippet deletes the next following char\n "
	}
}

2. Create new plaintext file with example text

()!!
()  
()aa

3. Place cursor in-between brackets
4. Press ctrl+space and select Brackets Snippet

Expected:
nothing
(Cursor moves 1 to the right)

Actual:
1 character is deleted after the () 🐛
doesn't matter if the char is a wordPattern or wordSeparator or whitespace

Notice that using other characters other than brackets () does not result in chars being deleted

Does this issue occur when all extensions are disabled?: Yes

• VS Code Version: 1.95.3
• OS Version: Windows 11

[RedCMD]

working correctly in 1.48.2
broken in 1.59.1

[RedCMD]

v1.52.1 is good
v1.53.0 is bad

[RedCMD]

this looks sus d6936dd

• Snippets and Auto-closing pairs play nicer #114235

@TylerLeonhardt another edgecase to handle?

[RedCMD]

PR #240604