Esoteric songwriting credit question

The song “Seems Like Only Yesterday” appears on Jesse Winchester’s 1977 album, “Nothing But A Breeze.”

The record label credits the song to Stoney Edwards. However, every online resource lists Winchester as the composer.

I notice that Edwards did cover a couple of Winchester’s songs. Was his crediting “Seems Like Only Yesterday” to Edwards a payback of sorts?

Or some other explanation?