Updated mediawiki/extensions
Project: mediawiki/extensions/Flow  bc64f322c439990670b104ab39b1f23730d5e7d4

Remove unnecessary round trips to memcache

Couple small optimizations that remove trips to memcache when the indexed
values dont change.

Change-Id: Ie4c2d48f4f7a56ccbc87365be575982fa4ad8596