Just had a field worker come to me concerned that they were doing something wrong. We had two maps downloaded with the same editable layers. One of the maps was downloaded for offline use in case connection was lost. The other, which made use of a public wms in the map, was not downloaded. As it turned out, connectivity was not a problem during fieldwork, so they started editing the layers on the map that wasn't downloaded. They were alarmed to find that when they switched to the downloaded map, the edits made on the other map automatically showed up. My understanding is that as long as connectivity is available, even downloaded maps will show map updates, until connectivity is lost.
Can anyone verify that this is correct?