Multiple keyrings in inv

[Vile]

• white keyring and gold keyring in inv
• use white keyring - gold key appears
• drop gold keyring and use white keyring - white key appears

[HP=840/MA=276]:i
You are carrying 10 gold crowns, laen longsword (Weapon Hand), lunar chainmail
coif (Head), lunar chain gauntlets (Hands), platinum ring (Finger), ruby-eyed
skull ring (Finger), lunar chainmail boots (Feet), stormmetal bracers (Arms),
crimson cloak (Back), phoenix feather (Neck), lunar chainmail leggings (Legs),
lionskin belt (Waist), lunar chainmail hauberk (Torso), silvery crested shield
(Off-Hand), mithril earrings (Ears), severed head of Irikani (Worn), diamond
emblem, gold emblem, white keyring, black and white serpent ring, white gold
ring, diamond-studded ring, rope and grapple, mine pass, sparkling pendant,
nexus chakram, skull mask, pine wand, gold keyring, amber talisman
You have the following keys: black star key, white key.
Wealth: 1000 copper farthings
Encumbrance: 3277/9840 - Light [33%]
[HP=840/MA=276]:use white keyring
You remove a key from the keyring!
[HP=840/MA=280]:i
You are carrying 10 gold crowns, laen longsword (Weapon Hand), lunar chainmail
coif (Head), lunar chain gauntlets (Hands), platinum ring (Finger), ruby-eyed
skull ring (Finger), lunar chainmail boots (Feet), stormmetal bracers (Arms),
crimson cloak (Back), phoenix feather (Neck), lunar chainmail leggings (Legs),
lionskin belt (Waist), lunar chainmail hauberk (Torso), silvery crested shield
(Off-Hand), mithril earrings (Ears), severed head of Irikani (Worn), diamond
emblem, gold emblem, white keyring, black and white serpent ring, white gold
ring, diamond-studded ring, rope and grapple, mine pass, sparkling pendant,
nexus chakram, skull mask, pine wand, gold keyring, amber talisman
You have the following keys: black star key, white key, gold key.
Wealth: 1000 copper farthings
Encumbrance: 3287/9840 - Light [33%]
[HP=840/MA=280]:drop gold keyring
You dropped gold keyring.
[HP=840/MA=280]:use white keyring
You remove a key from the keyring!
[HP=840/MA=280]:i
You are carrying 10 gold crowns, laen longsword (Weapon Hand), lunar chainmail
coif (Head), lunar chain gauntlets (Hands), platinum ring (Finger), ruby-eyed
skull ring (Finger), lunar chainmail boots (Feet), stormmetal bracers (Arms),
crimson cloak (Back), phoenix feather (Neck), lunar chainmail leggings (Legs),
lionskin belt (Waist), lunar chainmail hauberk (Torso), silvery crested shield
(Off-Hand), mithril earrings (Ears), severed head of Irikani (Worn), diamond
emblem, gold emblem, white keyring, black and white serpent ring, white gold
ring, diamond-studded ring, rope and grapple, mine pass, sparkling pendant,
nexus chakram, skull mask, pine wand, amber talisman
You have the following keys: black star key, 2 white key, gold key.
Wealth: 1000 copper farthings
Encumbrance: 3292/9840 - Light [33%]

[Gardner Denver]

The reason this happens is because all keyrings use the same spell to create a key.  It starts with red keyring and runs to white.  As soon as it finds a match it creates a key and stops.  So if you had a red keyring and 5 others as well in inventory, no matter which one you used, you'd get a red key.