Which tools generate a repository dump with leading slashes in path headers?

SVNBook tells that a repository dump generated with svnadmin dump never includes leading slashes in Node-path and Node-copyfrom-path headers.

It also tells that some 3-rd party tools (scripts?) can generate Subversion repository dumps with leading slashes in these headers.

Inconsistent usage of slashes in these headers (as far as I understand, it can happen after combining 2 repository dumps generated via different tools) can cause issues when filtering a repository dump.

So which tools generate a repository dump with leading slashes in path headers? In what case a repository dump can have an inconsistent leading slashes usage?

SVN-DumpReloc Perl script generates leading slashes in Node-path and Node-copyfrom-path headers.

So, combining repository dumps, when one of them was processed with SVN-DumpReloc will create a dump file with inconsistent usage of slashes.