Is it a typo when fields are not registered to the parent protocol or should README.dissector describe if/when this is acceptable?
From README.dissector:
"abbrev (FIELDABBREV)
--------------------
A string with an abbreviation of the field. The abbreviation should start
with the abbreviation of the parent protocol followed by a period as a
separator."
Protocol registration is handled by creating an instance of the
header_field_info struct (or an array of such structs), and
calling the registration function along with the registration ID of
the protocol that is the parent of the fields.
A few examples: