VS Code issue snippets isn't working inside quotations

While using vscode I've realised that. Editor is unable to show a snippets list. when coding inside a quotation mark (doubled or single) the issue is exist in all languages.
However the issue isn't exist in older versions.

In this Screenshots I've tested it on javascript language.

Screenshot for snippet file before testing the snippets:

Snippet:

"jinzo": {
    "prefix": "jinzo",
    "body": [
        "jinzo_snippet_example"
    ],
    "description": "Test snippet."
    }

OS: Windows 10 (Build 1709)
CPU: Intel i7
Microsoft Visual Studio: v1.19.1

Animated GIF for the bug snippet name jinzo

Works on older versions like Microsoft Visual Studio: v1.9.1

Here is Animated GIF for that version