Updated mediawiki/extensions
Project: mediawiki/extensions/Flow  c32ed8d4a261592d3ce76abab025e9b5a648c335

Fix editing header on untouched page.

Adding BoardHistory block in I363b6bd9e972467953b0e64cd437309ce08446b7 threw an
exception if there was no history for all API calls.

Change-Id: I929e3c1f0279d7f4a986a28f73c55c0272deb3d2