An odd thing just happened to me, and I wonder how common it is. I submitted a paper to a journal, did one round of major revisions at their request, then after the new version had been refereed I received the message: "This paper can be accepted for publication after you have made the changes suggested by the referees." I duly made said changes and returned the paper to the journal. Deal done, or so I thought.
However, after a couple of months they wrote again asking for another set of major revisions, no longer saying they would accept the paper if I made these new changes, but only that it "might be reconsidered".
Nothing like this has happened to me before. Has anyone else experienced it?