Server crash report broken if Galera is not loaded

240920 17:57:28 [ERROR] mysqld got signal 6 ;

Sorry, we probably made a mistake, and this is a bug.

Your assistance in bug reporting will enable us to fix this for the next release.

To report this bug, see https://mariadb.com/kb/en/reporting-bugs

We will try our best to scrape up some info that will hopefully help

diagnose the problem, but since we have already crashed, 

something is definitely wrong and this may fail.

Server version: 10.5.27-MariaDB-debug source revision: 0a5e4a0191ecedff7d57867b01864225615af430

key_buffer_size=134217728

read_buffer_size=131072

max_used_connections=0

max_threads=153

thread_count=0

It is possible that mysqld could use up to 

key_buffer_size + (read_buffer_size + sort_buffer_size)*max_threads = 468030 K  bytes of memory

Hope that's ok; if not, decrease some variables in the equation.

WSREP: Suppressing further logging

WSREP: Shutting down network communications

terminate called after throwing an instance of 'wsrep::runtime_error'

  what():  provider not loaded

diff --git a/sql/wsrep_server_state.cc b/sql/wsrep_server_state.cc

index a936d9dd79d..3ed26d3381c 100644

--- a/sql/wsrep_server_state.cc

+++ b/sql/wsrep_server_state.cc

@@ -87,7 +87,7 @@ void Wsrep_server_state::destroy()

 void Wsrep_server_state::handle_fatal_signal()

 {

-  if (m_instance)

+  if (m_instance && m_instance->is_provider_loaded())

   {

     /* Galera background threads are still running and the logging may be

        relatively verbose in case of networking error. Silence all wsrep