MDEV-654 Assertion `share->now_transactional' failed in flush_log_for_bitmap on concurrent workload with Aria tables

Problem was that we the bitmap needs to be flushed before disabling
logging of redo entires, as writing the bitmap to disk by
background checkpoint may cause redo entries.

storage/maria/ha_maria.cc

@@ -1312,6 +1312,7 @@ int ha_maria::check(THD * thd, HA_CHECK_OPT * check_opt)
   old_proc_info= thd_proc_info(thd, "Checking status");
   thd_progress_init(thd, 3);
   error= maria_chk_status(param, file);                // Not fatal
+  /* maria_chk_size() will flush the page cache for this file */
   if (maria_chk_size(param, file))
     error= 1;
   if (!error)

storage/maria/ma_recovery.c

@@ -3521,6 +3521,14 @@ void _ma_tmp_disable_logging_for_table(MARIA_HA *info,
 {
   MARIA_SHARE *share= info->s;
   DBUG_ENTER("_ma_tmp_disable_logging_for_table");
+
+  /*
+    We have to ensure that bitmap is flushed, as it's checking
+    that share->now_transactional is set
+  */
+  if (share->now_transactional && share->data_file_type == BLOCK_RECORD)
+    _ma_bitmap_flush_all(share);
+
   if (log_incomplete)
   {
     uchar log_data[FILEID_STORE_SIZE];