Updated mediawiki/extensions
Project: mediawiki/extensions/Flow  483058aa29edcde5a14d314f0e5b8b27f3f847d3

Anon users creating new header results in SQL error

The SQL error complains that rc_user_text could not be null

Bug: 59638
Change-Id: I2eadb48bad64c94b34e079a0b4b5ac60ca020edd