Error when having two product files in a plugin

[berndv]

Trying to do a product build with two .product files (x.product and y.product) results in this error:

[ERROR] ‘profiles.profile[buildProducts].plugins.plugin[org.apache.maven.plugins:maven-install-plugin].executions.execution.id’ must be unique but found duplicate execution with id b2-install-public.win32.win32.x86.zip @ line 240, column 21

Giving them a common naming scheme (x-x.product and a-y.product) solves the problem.