pacman system update - Why am I prompted to import a specific key?

["David C. Rankin" <drankinatty@xxxxxxxxxxxxxxxxxx>]

All,

  On update today (yesterday's updates went fine), I am prompted to approve
import of the following key a number of times:

(108/108) checking keys in keyring
[######################################] 100%
downloading required keys...
:: Import PGP key 3B94A80E50A477C7, "Jan Alexander Steffens (heftig)
<heftig@xxxxx>"? [Y/n]
:: Import PGP key 3B94A80E50A477C7, "Jan Alexander Steffens (heftig)
<heftig@xxxxx>"? [Y/n] Y
:: Import PGP key 3B94A80E50A477C7, "Jan Alexander Steffens (heftig)
<heftig@xxxxx>"? [Y/n]
:: Import PGP key 3B94A80E50A477C7, "Jan Alexander Steffens (heftig)
<heftig@xxxxx>"? [Y/n]
:: Import PGP key 3B94A80E50A477C7, "Jan Alexander Steffens (heftig)
<heftig@xxxxx>"? [Y/n]
:: Import PGP key 3B94A80E50A477C7, "Jan Alexander Steffens (heftig)
<heftig@xxxxx>"? [Y/n]
:: Import PGP key 3B94A80E50A477C7, "Jan Alexander Steffens (heftig)
<heftig@xxxxx>"? [Y/n]
:: Import PGP key 3B94A80E50A477C7, "Jan Alexander Steffens (heftig)
<heftig@xxxxx>"? [Y/n]
:: Import PGP key 3B94A80E50A477C7, "Jan Alexander Steffens (heftig)
<heftig@xxxxx>"? [Y/n]
:: Import PGP key 3B94A80E50A477C7, "Jan Alexander Steffens (heftig)
<heftig@xxxxx>"? [Y/n]

  Is this normal?

(email address intentionally truncated)

-- 
David C. Rankin, J.D.,P.E.