SQL: segfault after make_select() in VTMD

mysql-test/suite/versioning/r/vtmd.result

@@ -354,6 +354,10 @@ u0_vtmd
 u0_vtmd_vtmd
 Warnings:
 Warning	4088	Table `test.u0_vtmd` is not a VTMD table
+set versioning_alter_history= survive;
+create or replace table t (x int) with system versioning;
+select * from t for system_time all;
+x	sys_trx_start	sys_trx_end
 drop database db0;
 drop database db1;
 drop database test;

mysql-test/suite/versioning/t/vtmd.test

@@ -193,6 +193,10 @@ set versioning_hide= auto;
 create or replace table u0_vtmd (x int) with system versioning;
 show tables;
 
+set versioning_alter_history= survive;
+create or replace table t (x int) with system versioning;
+select * from t for system_time all;
+
 drop database db0;
 drop database db1;
 drop database test;

sql/vtmd.cc

@@ -547,7 +547,7 @@ VTMD_table::find_archive_name(THD *thd, String &out)
 
   while (!(error= info.read_record(&info)) && !thd->killed && !thd->is_error())
   {
-    if (select->skip_record(thd) > 0)
+    if (!select || select->skip_record(thd) > 0)
     {
       vtmd.table->field[FLD_ARCHIVE_NAME]->val_str(&out);
       break;