Relationship created via relationship uses incorrect table alias in views_handler_relationship_groupwise_max.inc

A summary of the problem can be found in the parent issue: https://www.drupal.org/project/views/issues/2295379 . In fact, the discussion should probably be moved there, but the issue is closed and hasn't received any traction since I've posted in it (and I cannot re-open it).

Essentially, the SQLSTATE issue was present in Views 3.14 (I believe) and I patched it 2 months ago successfully via the issued patch (#9). A few weeks ago, we upgraded to Views 3.20 and it came back. I compared the code in the patch (#9) and 3.14 to the code in 3.20 and the current 3.x-dev and it was entirely different -- it must have been re-written at some point. I created a patch which incorporated the same strategy as the previous patch to fix the issue, but I'm unsure if it's the correct route. Thanks!