vim-patch:9.1.0035: i_CTRL-] triggers InsertCharPre (#27049)

* vim-patch:9.1.0035: i_CTRL-] triggers InsertCharPre

Problem:  i_CTRL-] triggers InsertCharPre
Solution: Return if CTRL-] is received. InsertCharPre
          is supposed to be only used for chars to be inserted
          but i_CTRL-] triggers expansion and is not inserted
          into the buffer (altermo)

closes: vim/vim#13853
closes: vim/vim#13864

7d711fe209

src/nvim/edit.c

@@ -4725,6 +4725,10 @@ static char *do_insert_char_pre(int c)
   char buf[MB_MAXBYTES + 1];
   const int save_State = State;
 
+  if (c == Ctrl_RSB) {
+    return NULL;
+  }
+
   // Return quickly when there is nothing to do.
   if (!has_event(EVENT_INSERTCHARPRE)) {
     return NULL;