Can't cancel selection and re-select by clicking in selection

[liuxilu]

Describe the bug

As the title.

Did this error occur while using dotnet try or online?

• [x] online

What kind of error was it?

• [x] User Interface (UI): For example the output never displayed

Screenshots

None.

Please complete the following:

• OS
  • [x] Windows 10
• Browser
  • [x] Chrome