ptpdump does not interpret WR singaling frames

Expected output

TIMEDELTA: -34363732 ms
TIME: (1611968215 - 0x6014aed7) 00:56:55.593014
ETH: 88f7 (XX:XX:XX:XX:XX:XX -> 01:1b:19:00:00:00)
VERSION: 2 (type 12, len 56, domain 0)
FLAGS: 0x0000 (correction 0x00000000:00000000 00000000)
PORT: XX-XX-XX-ff-fe-XX-XX-XX-00-03
REST: seq 5, ctrl 5, log-interval 127
MESSAGE: (G) SIGNALING
MSG-SIGNALING: target-port 22-33-44-ff-fe-55-66-77-00-01
TLV: type 0003 len 12 oui 08:00:30 sub de:ad:01
TLV: messageId LOCKED(0x1002)                                      <------------------------------
DUMP: payload (size 56)
DUMP: 0c 02 00 38  00 00 00 00  00 00 00 00  00 00 00 00
DUMP: 00 00 00 00  XX XX XX ff  fe XX XX XX  00 03 00 05
DUMP: 05 7f 22 33  44 ff fe 55  66 77 00 01  00 03 00 08
DUMP: 08 00 30 de  ad 01 10 02