Don't allow thanking system users
Don't allow thanking system users

Bug: T237356
Change-Id: I3d7968276a59a66ed4d1931b03310e571d070167
Depends-On: I73f25a10df2c28a69f612eb1db3e91b7125383d9

wikimedia/mediawiki-extensions-Thanks,wikimedia/mediawiki-extensions-Thanks,wikimedia/mediawiki-extensions-Thanks