Some systems failed to build for Quicklisp dist

[quicklisp]

Building with SBCL 2.0.6 / ASDF 3.3.1 for quicklisp dist creation.

Commit id 4231ae1

weblocks-postmodern fails to build with the following error:

Unhandled NAME-CONFLICT in thread #<SB-THREAD:THREAD "main thread" RUNNING {1000A30083}>: USE-PACKAGE #<PACKAGE "WEBLOCKS-STORES"> causes name-conflicts in #<PACKAGE "WEBLOCKS-POSTMODERN"> between the following symbols: WEBLOCKS-STORES:ROLLBACK-TRANSACTION, POSTMODERN:ROLLBACK-TRANSACTION

Full log here