Confusing lack of error from "make replace"

[John Klos <john%klos.com@localhost>]

"make replace", run from pkg_rolling-replace, NetBSD 10, latest pkgsrc as 
of 15-March-2024:

/usr/bin/find /usr/pkgsrc/www/wordpress/work/.destdir/usr/local/share/wordpress  -type f -exec /bin/chmod 644 "{}" \;
=> Automatic manual page handling
=> Generating post-install file lists
=> Checking file-check results for php82-wordpress-6.4.3
=> Creating binary package /usr/pkgsrc/www/wordpress/work/.packages/php82-wordpress-6.4.3.tgz
===> package-message [php82-wordpress-6.4.3] ===> Building binary package for php82-wordpress-6.4.3
=> Creating binary package /usr/pkgsrc/packages/All/php82-wordpress-6.4.3.tgz
===> replace-message [php82-wordpress-6.4.3] ===> Replacing for php82-wordpress-6.4.3
*** Error code 1

Stop.
make[1]: stopped in /usr/pkgsrc/www/wordpress
*** Error code 1

Stop.
make: stopped in /usr/pkgsrc/www/wordpress
*** 'make replace' failed for package wordpress.
*** Please read the errors listed above, fix the problem,
*** then re-run pkg_rolling-replace to continue.


Manually running "make replace" gives the same error with no information. 
Running "make update", however, gives:

===> su-real-package-install [php82-wordpress-6.4.3] ===> Installing binary package of php82-wordpress-6.4.3
pkg_add: Conflicting PLIST with wordpress-6.1: share/doc/wordpress/license.txt
pkg_add: 1 package addition failed
*** Error code 1


That error makes sense. Why doesn't "make replace" show the error?

John