logilab-devtools #68008 lgp build generates different files with the same basename [open]

lgp builds a source package with the same version for each distribution. That's kind of confusing, and will make it impossible to move to a repository with a shared pool of packages.
One option would be to add a dummy changelog entry before generating the source package for each distribution (except one) using a different version, based e.g. on the distribution's name or version, to allow for a unique filename -> checksum mapping.