The API returns imb_gsec as { value:'1', label:'…' }. It was missing from
NESTED_FIELDS, so describeGroup did Number({value:'1'}) -> NaN, the level
never matched, and the reachedness sentence was dropped for every group --
silently, because dropping a clause is the deliberate design for a missing
field. Every profile description shipped at half length.
Measured through the real normalizer and real catalogue: nested -> one
sentence, flattened -> two.
ef9cc92d20