sqlite error while executing UPDATE packages … pkgdb.c:2648: UNIQUE constraint failed: packages.name

root@mowa219-gjp4-8570p-freebsd:~ # sh
# for i in $(pkg query -g %n 'py38-*'); do pkg set -yn ${i}:py39-${i#py38-}; done
pkg: sqlite error while executing UPDATE packages SET name='py39-setuptools' WHERE id=44784 in file pkgdb.c:2648: UNIQUE constraint failed: packages.name
pkg: sqlite error while executing UPDATE packages SET name='py39-sqlite3' WHERE id=45711 in file pkgdb.c:2648: UNIQUE constraint failed: packages.name
# date ; uptime ; pkg -vv | grep -e url -e enabled
Mon Jun 27 20:42:52 BST 2022
 8:42PM  up 2 days, 10:43, 6 users, load averages: 4.52, 4.48, 4.26
    url             : "pkg+http://pkg0.pkt.freebsd.org/FreeBSD:14:amd64/latest",
    enabled         : yes,
    url             : "https://alpha.pkgbase.live/current/FreeBSD:14:amd64/latest",
    enabled         : no,
    url             : "file:///usr/local/poudriere/data/packages/main-default",
    enabled         : yes,
# uname -aKU
FreeBSD mowa219-gjp4-8570p-freebsd 14.0-CURRENT FreeBSD 14.0-CURRENT #13 main-n256147-1c665e95d44-dirty: Wed Jun 15 07:49:44 BST 2022     root@mowa219-gjp4-8570p-freebsd:/usr/obj/usr/src/amd64.amd64/sys/GENERIC-NODEBUG amd64 1400061 1400061
# exit
root@mowa219-gjp4-8570p-freebsd:~ # exit