I have one job configured to create a new view and extract the whole source code
tree for every build (this takes about 25 minutes). The clearcase plugin
determines the recent changes after finishing loading the source code. Since the
recent changes are determined based on time, by the time it calculates the
changes (25 min after started loading the source code), there are already some
changes that were delivered to the SCM repository but were not extracted for
this build. These changes show up in the recent changes of a build, although
that code is not there.