[FS#693] /etc/config/ucitrack will contains empty repeating sections that multiply on each sysupgrade

[LEDE Bugs]

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FS#693 - /etc/config/ucitrack will contains empty repeating sections that multiply on each sysupgrade
User who did this: Yousong Zhou (yousong)
Status: Unconfirmed -> Waiting on reporter

More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=693