great.. we can avoid the (potential) property binding problem by put data as function argument.

Current notifications will give quite a lot warning, since jobsSource.data[modelData] might be undefined in the first place.

And this can also cause label1NameText to be shown as "undefinded: " for a job, this can be reproduced when you do the job of copy a large folder to sftp, the label1 will be undefined when doing the folder creation.

all related warning is now suppressed, and undefined will not be shown in the same case.