More fixes to reveerse direction through iterators, a=chris

Author Chris Pollett <chris@pollett.org>
Author date 2019-12-23 22:Dec:rd
Author local date 2019-12-23 17:Dec:rd -0500
Committer Chris Pollett <chris@pollett.org>
Committer date 2019-12-23 22:Dec:rd
Committer local date 2019-12-23 17:Dec:rd -0500
Commit 26de99cb2dd39f3ef91c2cad97fee3a637515e35
Tree a10285958b9cf957fe51e9a73e51a0ed54f7c2db
Parent ff657edc587779be41670afe5a2a718d5f30be5a
More fixes to reveerse direction through iterators, a=chris
Affected files:
src/library/IndexShard.php
src/library/index_bundle_iterators/GroupIterator.php
src/library/index_bundle_iterators/IntersectIterator.php
src/library/index_bundle_iterators/WordIterator.php
src/library/media_jobs/FeedsUpdateJob.php
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