relnote: On server side, do not process the first initial QUIC packet received from a client if the UDP datagram is < 1200 bytes. Instead, send a connection close with PROTOCOL_VIOLATION if the version is supported. Protected by quic_reloadable_flag_quic_donot_process_small_initial_packets.

PiperOrigin-RevId: 270157435
Change-Id: Id0faa750300b2e75c7e87cc05dd8635c580f01ba
diff --git a/quic/core/quic_packets.cc b/quic/core/quic_packets.cc
index 0352056..139fcda 100644
--- a/quic/core/quic_packets.cc
+++ b/quic/core/quic_packets.cc
@@ -502,6 +502,7 @@
       peer_address(peer_address),
       packet(packet),
       form(GOOGLE_QUIC_PACKET),
+      long_packet_type(INVALID_PACKET_TYPE),
       version_flag(false),
       use_length_prefix(false),
       version_label(0),