Merge "Avoid add preferenc again if it already in the PreferenceGroup" into sc-dev am: 81399d6fec am: 57fbe19791
Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/apps/Settings/+/14281934 Change-Id: Icc25a422173f9aff039fcda25c6bfc77b780a3e4
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