I cannot resist to mention that this kind of bugs shows how obsolete and not-so-well maintained and regularly erroneous in its understanding of p2 is the SimRel aggregator compared to Tycho; and that building the Simultaneous Release on top of such bugged and unpopular software is a major risk for our community, and causes always the same individual (fortunately often courtesy of the Foundation mostly, but not only) to spend major efforts in cutting the fire.
The only sustainable path for SimRel is to move away from CBI aggregator and a lot of related Ant scripts and start building on state of art and well used and maintained Maven and Tycho.
Driven by my concerns about CBI aggregator, I've provided several related usable pieces of work on this topic:
* a pom.xml can already be used to build simrel with a plain `mvn clean verify` (delegating to CBI aggregator so far)
contains proposals of a migration to Tycho and some discussions.