pkg alias commands missing after upgrading to 1.17.5

After upgrading pkg from 1.17.4 to 1.17.5, all of the command line 
aliases appear to have been removed?

With pkg 1.17.4:

# pkg alias
ALIAS                ARGUMENTS
all-depends          'query %dn-%dv'
annotations          'info -A'
build-depends        'info -qd'
cinfo                'info -Cx'
comment              'query -i "%c"'
csearch              'search -Cx'
desc                 'query -i "%e"'
download             'fetch'
iinfo                'info -ix'
isearch              'search -ix'
prime-list           'query -e '%a = 0' '%n''
prime-origins        'query -e '%a = 0' '%o''
leaf                 'query -e '%#r == 0' '%n-%v''
list                 'info -ql'
noauto               'query -e '%a == 0' '%n-%v''
options              'query -i "%n - %Ok: %Ov"'
origin               'info -qo'
provided-depends     'info -qb'
rall-depends         'rquery %dn-%dv'
raw                  'info -R'
rcomment             'rquery -i "%c"'
rdesc                'rquery -i "%e"'
required-depends     'info -qr'
roptions             'rquery -i "%n - %Ok: %Ov"'
shared-depends       'info -qB'
show                 'info -f -k'
size                 'info -sq'
unmaintained         'query -e '%m = "ports@FreeBSD.org"' '%o (%w)''
runmaintained        'rquery -e '%m = "ports@FreeBSD.org"' '%o (%w)''

With pkg-1.17.5:

# pkg alias
ALIAS                ARGUMENTS
# pkg leaf
pkg: unknown command: leaf

For more information on available commands and options see 'pkg help'.