mysqltest crashes upon --enable_reconnect without an active connection

--connect (con1,localhost,root,,)

--disconnect con1

--enable_reconnect

mysqltest got signal 11

read_command_buf (0x55623da15338): --enable_reconnect

conn->name (0x55623da3f0a8): -closed_connection-

Attempting backtrace...

stack_bottom = 0x0 thread_stack 0x3c000

mysys/stacktrace.c:216(my_print_stacktrace)[0x5562163e8f5e]

bits/stdio2.h:79(signal_handler)[0x55621639c4fc]

libc_sigaction.c:0(__restore_rt)[0x7f6aa585b050]

libmariadb/mariadb_lib.c:3523(mysql_optionsv)[0x5562163b2584]

client/mysqltest.cc:10761(main)[0x55621639b93b]

x86/libc-start.c:74(__libc_start_call_main)[0x7f6aa584624a]

csu/libc-start.c:128(call_init)[0x7f6aa5846305]

/share8t/bld/main-rel/client//mariadb-test(_start+0x21)[0x55621639c221]

Writing a core file...

/data/bld/main-asan-ubsan/libmariadb/libmariadb/mariadb_lib.c:3523:29: runtime error: member access within null pointer of type 'struct MYSQL'

mysqltest got signal 11

read_command_buf (0x631000014818): --enable_reconnect

conn->name (0x604000000ea8): -closed_connection-

Attempting backtrace...

stack_bottom = 0x0 thread_stack 0x3c000

sanitizer_common/sanitizer_common_interceptors.inc:4277(__interceptor_backtrace.part.0)[0x7f0bc7e51f31]

mysys/stacktrace.c:215(my_print_stacktrace)[0x556d9d9f66f1]

client/mysqltest.cc:10086(dump_backtrace())[0x556d9d8acc34]

client/mysqltest.cc:10102(signal_handler)[0x556d9d8acd96]

libc_sigaction.c:0(__restore_rt)[0x7f0bc6a5b050]

libmariadb/mariadb_lib.c:3523(mysql_optionsv)[0x556d9d908190]

libmariadb/mariadb_lib.c:4149(mysql_options)[0x556d9d90f8f9]

client/mysqltest.cc:10759(main)[0x556d9d8ed1cd]

x86/libc-start.c:74(__libc_start_call_main)[0x7f0bc6a4624a]

csu/libc-start.c:128(call_init)[0x7f0bc6a46305]

/share8t/bld/main-asan-ubsan/client//mariadb-test(_start+0x21)[0x556d9d8ab3a1]

Writing a core file...