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

[LEDE Bugs]

The following task has a new comment added:

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

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okay, it should be a bug in luci-app-upnp itself.  I just posted a pr to the luci repo: https://github.com/openwrt/luci/pull/1113
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More information can be found at the following URL:
https://bugs.lede-project.org/index.php?do=details&task_id=693#comment2422