DROP SERVER after renaming/dropping mysql.servers triggers DBUG_ASSERT !is_set()

create server s1 foreign data wrapper foo options(user 'a');

rename table mysql.servers to mysql.servers_save;

drop server s1;

 - found 'core.120935' (0/5)

Thread 1 (Thread 0x755ec005c6c0 (LWP 120942)):

#0  __pthread_kill_implementation (threadid=<optimized out>, signo=6, no_tid=0) at ./nptl/pthread_kill.c:44

#1  __pthread_kill_internal (threadid=<optimized out>, signo=6) at ./nptl/pthread_kill.c:89

#2  __GI___pthread_kill (threadid=<optimized out>, signo=6) at ./nptl/pthread_kill.c:100

#3  0x000064d656bfcf71 in my_write_core (sig=6) at /src/mariadb/mysys/stacktrace.c:424

#4  0x000064d65620bd4e in handle_fatal_signal (sig=6) at /src/mariadb/sql/signal_handler.cc:298

#5  <signal handler called>

#6  __pthread_kill_implementation (threadid=<optimized out>, signo=6, no_tid=0) at ./nptl/pthread_kill.c:44

#7  __pthread_kill_internal (threadid=<optimized out>, signo=6) at ./nptl/pthread_kill.c:89

#8  __GI___pthread_kill (threadid=<optimized out>, signo=signo@entry=6) at ./nptl/pthread_kill.c:100

#9  0x0000755ecb2456de in __GI_raise (sig=sig@entry=6) at ../sysdeps/posix/raise.c:26

#10 0x0000755ecb2288cd in __GI_abort () at ./stdlib/abort.c:73

#11 0x0000755ecb228830 in __assert_fail_base (fmt=<optimized out>, assertion=<optimized out>, file=<optimized out>, line=<optimized out>, function=<optimized out>) at ./assert/assert.c:118

#12 0x000064d655d2b947 in Diagnostics_area::set_ok_status (this=0x755eb00070c8, affected_rows=0, last_insert_id=0, message=0x0) at /src/mariadb/sql/sql_error.cc:357

#13 0x000064d655cb5af0 in my_ok (thd=0x755eb0000dc8, affected_rows_arg=0, id=0, message=0x0) at /src/mariadb/sql/sql_class.h:6302

#14 0x000064d655da49ca in mysql_execute_command (thd=0x755eb0000dc8, is_called_from_prepared_stmt=false) at /src/mariadb/sql/sql_parse.cc:5834

#15 0x000064d655dab15c in mysql_parse (thd=0x755eb0000dc8, rawbuf=0x755eb00181f0 "drop server s1", length=14, parser_state=0x755ec005b2c0) at /src/mariadb/sql/sql_parse.cc:7891

#16 0x000064d655d96967 in dispatch_command (command=COM_QUERY, thd=0x755eb0000dc8, packet=0x755eb000c149 "drop server s1", packet_length=14, blocking=true) at /src/mariadb/sql/sql_parse.cc:1877

#17 0x000064d655d9524c in do_command (thd=0x755eb0000dc8, blocking=true) at /src/mariadb/sql/sql_parse.cc:1416

#18 0x000064d655fb0a6a in do_handle_one_connection (connect=0x64d695238d48, put_in_cache=true) at /src/mariadb/sql/sql_connect.cc:1414

#19 0x000064d655fb07df in handle_one_connection (arg=0x64d695213cf8) at /src/mariadb/sql/sql_connect.cc:1326

#20 0x000064d65659144e in pfs_spawn_thread (arg=0x64d69519ef78) at /src/mariadb/storage/perfschema/pfs.cc:2198

#21 0x0000755ecb2a2ef1 in start_thread (arg=<optimized out>) at ./nptl/pthread_create.c:448

#22 0x0000755ecb33445c in __GI___clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:78

query 'drop server s1' failed: ER_NO_SUCH_TABLE (1146)