I noticed when listing these two academy shops only the second shows
the "The shopkeeper will purchase:" line.

Wasn't sure if that meant he will not purchase any items or a bug?

<100%hp 100%m 96%mv 1400tnl civilized 11 AM> list
The shop's hours are 12 AM until 11 PM.
Item (Type)
< 1 122> a pair of fine leather sleeves (worn on arms)

Molnar tells you 'See anything you like? A lucky thing you came along.'
Jaham tells you 'I'm also interested in doing some business.'

<100%hp 100%m 96%mv 1400tnl civilized 11 AM> list all ja
The shop's hours are 12 AM until 11 PM.
The shopkeeper will purchase: thief tool treasure map trap ingredient poison ingredient

Item (Type)
< 1 109> a traveler's ring (treasure)
< 1 87> a wide copper ring (treasure)

Jaham tells you 'Would you like to browse anything further?'
Molnar tells you 'I'm also interested in doing some business.'