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Don’t populate tag cloud if it doesn’t exist

Authored by LucasWerkmeister on May 18 2018, 7:49 PM.

Description

Don’t populate tag cloud if it doesn’t exist

If the tag cloud does not exist on the page – for example, on embed.html
– there is no need to call the two expensive functions for “show” and
“filter” entities (each runs a query!).

Bug: T194735
Change-Id: Ifa90af071228e948729ffdb66338d5914783bdcf