Fixes notice in DisjointIterator, a=chris

Author Chris Pollett <chris@pollett.org>
Author date 2018-05-30 21:May:th
Author local date 2018-05-30 14:May:th -0700
Committer Chris Pollett <chris@pollett.org>
Committer date 2018-05-30 21:May:th
Committer local date 2018-05-30 14:May:th -0700
Commit ae7bc576a8010579cafc6ded7400d9c0c69141cf
Tree d756419d2f247c0d12665eac603fe21a6775aa10
Parent deef02755bdc7dd14cd7ae7921b987f4555a41db
Fixes notice in DisjointIterator, a=chris
Affected files:
src/library/index_bundle_iterators/DisjointIterator.php
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