Updating user's isEnabled field receive sql error

[Trexology]

when changing the user isEnabled value to false, will receive sql error "General error: 1366 Incorrect integer value: '' for column 'isEnabled' at row 1"

namely because a string "false" is passed into the sql query instead of int 0.

Changing user_manager class at line 538 to 'isEnabled' => intval($user->isEnabled()), will solve the problem.