patch 9.0.0933: Kitty shows "already at oldest change" on startup

Problem:    Kitty shows "already at oldest change" on startup.
Solution:   When receiving the keyboard protocol state return the ignore key.
            (closes #11601)

src/term.c

@@ -5238,6 +5238,9 @@ handle_csi(
 	// The protocol has various "progressive enhancement flags" values, but
 	// we only check for zero and non-zero here.
 	kitty_protocol_state = arg[0] == '0' ? KKPS_OFF : KKPS_ENABLED;
+
+	key_name[0] = (int)KS_EXTRA;
+	key_name[1] = (int)KE_IGNORE;
 	*slen = csi_len;
     }
 

src/version.c

@@ -695,6 +695,8 @@ static char *(features[]) =
 
 static int included_patches[] =
 {   /* Add new patch number below this line */
+/**/
+    933,
 /**/
     932,
 /**/