I got a weird Facebook autolike page invite notification, Sorcery?

Yesterday I got a weird Page Invite Notification on Facebook, when I clicked on It, It said your friend thought you did like her page, and it autoliked the page. I didn't do it myself.

I searched almost everywhere about this, but no clues so far.
what I learned is that, the page was migrated from a profile to a page.
what kind of sorcery is this? Anyone?

Someone has converted personal profile into a page. When all friends are converted to likes, you receive that notification.