It isn't necessarily in the talk page, those are scrubbed sometimes too.

Compare:

https://en.wikipedia.org/w/index.php?title=Talk:Hummus&oldid...

https://en.wikipedia.org/w/index.php?title=Talk:Hummus&oldid...

Yes there was an edit war over Hummus being called Levantine because some people insisted the Jews were colonizing the food.