Question regarding helping apt replace packages

[Adrian Bunk <bunk@debian.org>]

Hi,

https://wiki.debian.org/PackageTransition
 #11 ??
 Merge and remove: A and B existed; merge everything from A into B; A 
 does not exist in new archive; B is the functioning package 

I'm currenly looking at a special case (and will also update the wiki for that):
If a package takes over all files from another package but there are no 
file conflicts, is there anything in addition to Breaks that should be
usedso that apt understands that this is a package merge?

The case in question is a formerly 3rd party plugin in an own package 
that is now part of the plugins in the main package, but in a different 
filesystem location.

Thanks
Adrian