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.

/* if_lua.c */
int lua_enabled(int verbose);
void lua_end(void);
void ex_lua(exarg_T *eap);
void ex_luado(exarg_T *eap);
void ex_luafile(exarg_T *eap);
void lua_buffer_free(buf_T *o);
void lua_window_free(win_T *o);
void do_luaeval(char_u *str, typval_T *arg, typval_T *rettv);
int set_ref_in_lua(int copyID);
/* vim: set ft=c : */