commit https://github.com/vim/vim/commit/5983ad0b038fa689653246cb304fd43e8ae39a78 Author: Bram Moolenaar <Bram@vim.org> Date: Sat Mar 5 20:54:36 2016 +0100 patch 7.4.1493 Problem: Wrong callback invoked for zero-id messages. Solution: Don't use the first one-time callback when the sequence number doesn't match.

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