Increment num_objects_read_ when End Of Group flag is set.

We delay completion of object delivery until the next byte arrives, because we don't know the status of the object. We did not count the late delivery of this object causing a FIN to appear to be invalid.

(MOQ interop bug)

There needs to be a broader rework of EOG flag handling, but this allows interop to succeed.

PiperOrigin-RevId: 868924457

quiche/quic/moqt/moqt_parser.cc

diff --git a/quiche/quic/moqt/moqt_parser.cc b/quiche/quic/moqt/moqt_parser.cc
index 7d43a77..21607f6 100644
--- a/quiche/quic/moqt/moqt_parser.cc
+++ b/quiche/quic/moqt/moqt_parser.cc
@@ -1685,6 +1685,7 @@
       // Data arrived; the last object was not EndOfGroup.
       visitor_.OnObjectMessage(metadata_, "", /*end_of_message=*/true);
       AdvanceParserState();
+      ++num_objects_read_;
     }
     return false;
   }