Updated mediawiki/extensions
Project: mediawiki/extensions/Wikibase  5468206f5e08553ddba85f4111397712bcdf1dc8

Emptying wb_changes_dispatch on deleteAllData

Emptying wb_changes_distpatch table when deleting all data to ensure the dispatcher works correctly.

Change-Id: I72b5128a93ea1550927b3cac41f9baaf263049b6