White screen of death after edit operation on nodes (without CCK module)

After upgrade to Boost 1.11 any node edit operation (after pushing the 'Save' button) leads to white blank page if CCK is not installed.

This is a error displayed:
Fatal error: Call to undefined function content_types() in ...../boost/boost.module on line 525

As the piece of code around line 525 is about CCK, it looks like Boost module doesn't check for the availability of CCK module (not the case on my installation).

The quick workaround that worked with me was to change line 522 from
if (BOOST_FLUSH_CCK_REFERENCES) {
to
if (BOOST_FLUSH_CCK_REFERENCES && module_exists('cck')) {