Updated mediawiki/extensions
Project: mediawiki/extensions/SemanticForms  8f7c700f3337837fa82b10b43a001a3273412318

Fix fatal error when using invalid target page title

Errors where not reported at all. So I fixed the bug by throwing
an exception on invalid target page title and inserted some error
reporting.

Bug: 50288
Change-Id: Ie7eeaba8d8c4c92daea8ae1a4945abfeeafdc7ab