Strict warning - declaration of workbench_access_handler_filter_access::value_submit()

Just updated Views to 7.x-3.2 to deal with a raft of major Date/Calendar issues, and now I'm getting the following strict warning.

Strict warning: Declaration of workbench_access_handler_filter_access::value_submit() should be compatible with that of views_handler_filter_in_operator::value_submit() in _registry_check_code() (line 3046 of /Applications/MAMP/htdocs/ghcb/includes/bootstrap.inc).

Using Workbench 1.1 and WB Access 7.x-1.0+19-dev (2012-Jan-22). The warning pops up most often on some calendar views - but only the first time after clearing all caches. I should also mention that I'm using the current (as of Feb 21) dev releases of both Date and Calendar - again, because of the date/calendar issues.