When I using the default theme in reading mode, there is a checkbox finish date issue

[Kellerman]

When I using the default theme in reading mode, and if I finished a checkbox, there is a checkbox finish date added on that line. I want to ask if there is a way to not add the finish date, I do not like it.

[kenjibailly]

The date should not come up when finishing a checkbox.
This action comes from this plugin, check if you have this one enabled:

Tasks