vim-patch:8.2.3993: when recording a change in Select mode char appears twice

Problem:    When recording a change in Select mode the first typed character
            appears twice.
Solution:   When putting the character back into typeahead remove it from
            recorded characters. (closes vim/vim#9462)
c88e977862

src/nvim/normal.c

@@ -1010,7 +1010,12 @@ static int normal_execute(VimState *state, int key)
     // restart automatically.
     // Insert the typed character in the typeahead buffer, so that it can
     // be mapped in Insert mode.  Required for ":lmap" to work.
-    ins_char_typebuf(s->c, mod_mask);
+    int len = ins_char_typebuf(s->c, mod_mask);
+
+    // When recording the character will be recorded again, remove the
+    // previously recording.
+    ungetchars(len);
+
     if (restart_edit != 0) {
       s->c = 'd';
     } else {