[REF] extract chunk of code that definitely does something.
authoreileen <emcnaughton@wikimedia.org>
Sat, 27 Apr 2019 04:37:07 +0000 (16:37 +1200)
committereileen <emcnaughton@wikimedia.org>
Sun, 28 Apr 2019 21:29:16 +0000 (09:29 +1200)
commit830ee2beda473a0569081821b01addea8393d572
treec62f1bedfaabcd745983fa03c10da8d40e02ba59
parent039d7c802009e719682bd7e4404aac125ba48d87
[REF] extract chunk of code that definitely does something.

This is a really blunt extraction of a chunk of code whose Raison D'Etre I don't quite know as yet.

I've done the absolute minimum variable cleanup to keep it really clean in the first instance
CRM/Dedupe/Merger.php