Steve,
So let's see. She didn't go to the meetings that worked on the report, but she popped her head round the door just as they were voting and shouted "Yeah, whatevvah you're on about, I'll endorse it!"   

I assumed that she read it Steve. Why ever would you assume that she did not?
Tim Loughton MP, Acting Chair of the Committee, said:
"It is symbolic of the importance of this deeply felt issue that, despite the contentious, political nature of much of the debate, this report — which does not pull its punches — was agreed unanimously and without division by the Committee's Members, across the parties.
https://www.parliament.uk/business/committees/committees-a-z/commons-select/home-affairs-committee/news-parliament-2015/antisemitism-report-published-16-17/

Shah was and is a committee member.