$ended_at must not be accessed before initialization

[adrenth]

My implementation is failing with the following error:

Typed property Spatie\Health\Checks\Result::$ended_at must not be accessed before initialization 

Which is triggered from the EloquentHealthResultStore class.

Health::checks([
    // Filesystem
    UsedDiskSpaceCheck::new(),

    // FTP-connections
    FtpConnectionsCheck::new()
        ->everyFiveMinutes(),

    // ...
])

It sure has something to do with the everyFiveMinutes() method which has been called on my FtpConnectionsCheck which causes the check not to be ended when the results are being written to the ...result_history_items database table.

Will this be fixed if we just assign null to the $ended_at property of the Spatie\Health\Checks\Result class?