Incorrect tokenization of querystring

[alexr00]

• Editor name and version: VS Code 1.62

• Platform: Any

• Color scheme: N/A

• MagicPython version: Most recent commit from master

• A sreenshot:
  

• 5-10 lines of surrounding code:

url = 'https://www.foo.com/bar?quux=%7B%22persistedQuery%22%3A%7B%22version%22%3A1%2C%22sha256Hash%22%3A%...%22%7D%7D'

Originally from @p-i- in microsoft/vscode#137461