Bad upgrade behaviour with 1.4.0

[Darren Pilgrim]

# pkg upgrade php5-pgsql
Updating FreeBSD repository catalogue...
FreeBSD repository is up-to-date.
All repositories are up-to-date.

nginx-1.6.2_1,2 is locked and may not be modified

openssh-portable-6.7.p1,1 is locked and may not be modified

dovecot2-2.2.15_1 is locked and may not be modified

dovecot-pigeonhole-0.4.6 is locked and may not be modified

postfix-2.11.3_3,1 is locked and may not be modified

postgresql92-server-9.2.9_1 is locked and may not be modified
Checking integrity... done (1 conflicting)
Checking integrity... done (0 conflicting)
The following 7 packages will be affected (of 0 checked):

Installed packages to be REMOVED:
         postgresql92-client-9.2.9_1
         dovecot2-2.2.15_1
         dovecot-pigeonhole-0.4.6
         postfix-2.11.3_3,1
         postgresql92-server-9.2.9_1

New packages to be INSTALLED:
         postgresql93-client: 9.3.5

Installed packages to be REINSTALLED:
         php5-pgsql-5.4.35 (direct dependency changed)

The operation will free 46 MB.

Proceed with this action? [y/N]: n

The reasoning here is fairly obvious: it's going to replace the 
postgresql client with a new version, and you can't have more than one 
version of the client installed, so it needs to delete 
postgresql92-client.  I guess the public repo bumped the postgresql 
version used.

I keep dovecot2, postfix and several other ports locked because I build 
them from ports due to needing non-default options.  In prior versions 
of pkg, this worked fine: pkg would complain about the lock, but an 
upgrade would carry on ignoring the locked ports.

But pkg 1.4.0 doesn't.  It ignores the lock and tries to delete those 
package anyway, making the upgrade process fail outright.

If I unlock everything, I still get broken behaviour:

# pkg upgrade php5-pgsql
Updating FreeBSD repository catalogue...
FreeBSD repository is up-to-date.
All repositories are up-to-date.
Checking integrity... done (1 conflicting)
Checking integrity...pkg: cannot load files from dovecot2 to check integrity
  done (0 conflicting)
The following 6 packages will be affected (of 0 checked):

Installed packages to be REMOVED:
         postgresql92-client-9.2.9_1
         postfix-2.11.3_3,1
         postgresql92-server-9.2.9_1

New packages to be INSTALLED:
         postgresql93-client: 9.3.5

Installed packages to be REINSTALLED:
         php5-pgsql-5.4.35 (direct dependency changed)
         dovecot2-2.2.15_1 (options changed)

The operation will free 29 MB.
3 MB to be downloaded.

Proceed with this action? [y/N]:

Here it wants to upgrade dovecot, but not postfix, which is really bizarre.

There's nothing in UPDATING about this.

How do I upgrade php5-pgsql and the postgresql client?