vim-patch:9.0.1694: wrong mapping applied when replaying a char search (#24670)

Problem: wrong mapping applied when replaying a char search
Solution: Store a NOP after the ESC

closes: vim/vim#12708
closes: vim/vim#6350

bacc83009b

src/nvim/getchar.c

@@ -1147,6 +1147,13 @@ static void gotchars(const uint8_t *chars, size_t len)
   maptick++;
 }
 
+/// Record a <Nop> key.
+void gotchars_nop(void)
+{
+  uint8_t nop_buf[3] = { K_SPECIAL, KS_EXTRA, KE_NOP };
+  gotchars(nop_buf, 3);
+}
+
 /// Undo the last gotchars() for "len" bytes.  To be used when putting a typed
 /// character back into the typeahead buffer, thus gotchars() will be called
 /// again.
@@ -2745,14 +2752,9 @@ static int vgetorpeek(bool advance)
   }
 
   if (timedout && c == ESC) {
-    uint8_t nop_buf[3];
-
     // When recording there will be no timeout.  Add a <Nop> after the ESC
     // to avoid that it forms a key code with following characters.
-    nop_buf[0] = K_SPECIAL;
-    nop_buf[1] = KS_EXTRA;
-    nop_buf[2] = KE_NOP;
-    gotchars(nop_buf, 3);
+    gotchars_nop();
   }
 
   vgetc_busy--;