It will create 2 implicit keys (one with the seedPhrase and the other one with random value) - which is a little bit confusing.
Moreover, I think that something's wrong with seed-phrase.js code - as it should probably store the key in a seedPhraseKeystore (but I'm not very familiar with this code).
Currently when you call
near --generate-key --seedPhrase a b c ..
It will create 2 implicit keys (one with the seedPhrase and the other one with random value) - which is a little bit confusing.
Moreover, I think that something's wrong with seed-phrase.js code - as it should probably store the key in a seedPhraseKeystore (but I'm not very familiar with this code).