Merge branch 'mysql-8.0' into mysql-8.4

Change-Id: I586d2cf3e7cb0e458f8b5b0f1761b10e4ee536ee

Author: TharunSai

storage/innobase/clone/clone0repl.cc

@@ -632,6 +632,12 @@ void Clone_persist_gtid::periodic_write() {
     os_event_reset(m_event);
     /* Write accumulated GTIDs to disk table */
     flush_gtids(thd);
+    /* Memory is allocated from thd->memroot to store the information about the
+    table being locked for flushing gtids. In this case, being a background
+    thread which is flushing the gtids every 100 millisecond, we should release
+    the memory after every cycle of flushing gtids to avoid memory growth in
+    Clone_persist_gtid thread .*/
+    thd->mem_root->ClearForReuse();
   }
 
   /* For slow shutdown, consume remaining GTIDs so that undo can be purged. */