I am a native speaker of American English, and I have only ever heard this usage of the word revert from one person. This person is not a native English speaker (he is from India), so he may just be mistaken, but I'm curious if anyone else has seen/heard this usage.
He will write an email, bringing up a point for discussion. He will explain the issue, and then end the paragraph with something like Please do analyze and revert on the status.
The best I can tell, he is asking for a response, and not asking for the something to be undone, or changed back to the way it was before (which is the meaning that I associate with the word revert).
Is revert used with different meanings outside the US?