pbulk broken

[Marc Baudoin <babafou%babafou.eu.org@localhost>]

Hi,

When using pbulk to build a limited set of packages, I get:

Cyclic dependency for package:
graphviz-12.2.1nb8
gd-2.3.3nb17
raqm-0.10.4
harfbuzz-12.3.2
gtk-doc-1.34.0nb7
yelp-tools-42.1nb7
yelp-xsl-42.1
itstool-2.0.7nb5
py313-libxml2-2.15.1
doxygen-1.16.1nb1
graphviz-12.2.1nb8

With a freshly updated pkgsrc tree.  It worked perfectly a few
hours ago today so that must be triggered by a very recent
update.