Crash during wsrep_replay_transaction

(Reported by kolbe)

/usr/sbin/mysqld(my_print_stacktrace+0x2b)[0xb9541b]
/usr/sbin/mysqld(handle_fatal_signal+0x398)[0x744b48]
/lib64/libpthread.so.0(+0xf710)[0x7f885a34b710]
/lib64/libc.so.6(+0x13f3c0)[0x7f8858ab73c0]
/usr/sbin/mysqld(_ZNK19rpl_sql_thread_info22cached_charset_compareEPc+0x20)[0x69b460]
/usr/sbin/mysqld(_ZN15Query_log_event14do_apply_eventEP14rpl_group_infoPKcj+0x86f)[0x802bdf]
/usr/sbin/mysqld(_Z14wsrep_apply_cbPvPKvmjPK14wsrep_trx_meta+0x525)[0x6f1c05]
/usr/lib64/galera/libgalera_smm.so(ZNK6galera9TrxHandle5applyEPvPF15wsrep_cb_statusS1_PKvmjPK14wsrep_trx_metaERS6+0xb1)[0x7f88565542c1]
/usr/lib64/galera/libgalera_smm.so(+0x1aaf95)[0x7f885658bf95]
/usr/lib64/galera/libgalera_smm.so(_ZN6galera13ReplicatorSMM10replay_trxEPNS_9TrxHandleEPv+0x12e)[0x7f885658c85e]
/usr/lib64/galera/libgalera_smm.so(galera_replay_trx+0x5c)[0x7f88565a045c]
/usr/sbin/mysqld(_Z24wsrep_replay_transactionP3THD+0x2de)[0x6f379e]
/usr/sbin/mysqld[0x5e24b0]
/usr/sbin/mysqld(_Z16dispatch_command19enum_server_commandP3THDPcj+0x16d0)[0x5e3c30]
/usr/sbin/mysqld(_Z10do_commandP3THD+0x132)[0x5e4402]
/usr/sbin/mysqld(_Z24do_handle_one_connectionP3THD+0x54b)[0x6a31cb]
/usr/sbin/mysqld(handle_one_connection+0x42)[0x6a32c2]
/lib64/libpthread.so.0(+0x79d1)[0x7f885a3439d1]
/lib64/libc.so.6(clone+0x6d)[0x7f8858a6086d]