Post-fix for #7814, fixed regression found by QA test for CORE-3625 (#…

…3977)

src/jrd/jrd.h

@@ -498,6 +498,7 @@ const ULONG TDBB_reset_stack			= 2048;		// stack should be reset after stack ove
 const ULONG TDBB_dfw_cleanup			= 4096;		// DFW cleanup phase is active
 const ULONG TDBB_repl_in_progress		= 8192;		// Prevent recursion in replication
 const ULONG TDBB_replicator				= 16384;	// Replicator
+const ULONG TDBB_async					= 32768;	// Async context (set in AST)
 
 class thread_db : public Firebird::ThreadData
 {
@@ -624,7 +625,11 @@ class thread_db : public Firebird::ThreadData
 		reqStat->bumpValue(index, delta);
 		traStat->bumpValue(index, delta);
 		attStat->bumpValue(index, delta);
-		// dbbStat adjusted from attStat, see Attachment::mergeAsyncStats()
+
+		if ((tdbb_flags & TDBB_async) && !attachment)
+			dbbStat->bumpValue(index, delta);
+
+		// else dbbStat is adjusted from attStat, see Attachment::mergeAsyncStats()
 	}
 
 	void bumpRelStats(const RuntimeStatistics::StatType index, SLONG relation_id, SINT64 delta = 1)
@@ -1109,6 +1114,8 @@ namespace Jrd {
 
 				fb_assert((operator thread_db*())->getAttachment());
 			}
+
+			(*this)->tdbb_flags |= TDBB_async;
 		}
 
 	private: