app-layer: don't check tx detect flags if detect is disabled

src/app-layer-parser.c

@@ -870,6 +870,7 @@ FileContainer *AppLayerParserGetFiles(const Flow *f, const uint8_t direction)
     SCReturnPtr(ptr, "FileContainer *");
 }
 
+extern int g_detect_disabled;
 /**
  * \brief remove obsolete (inspected and logged) transactions
  */
@@ -882,7 +883,7 @@ void AppLayerParserTransactionsCleanup(Flow *f)
     if (unlikely(p->StateTransactionFree == NULL))
         SCReturn;
 
-    const bool has_tx_detect_flags = (p->GetTxData != NULL);
+    const bool has_tx_detect_flags = (p->GetTxData != NULL && !g_detect_disabled);
     const uint8_t ipproto = f->proto;
     const AppProto alproto = f->alproto;
     void * const alstate = f->alstate;