It's not mentioned in the PR.  I overlooked the commit and ticket mention about it.  I suppose it's related to player look-up interactions, but it is a bug fix rather than anything to do with improving player look-ups.

It looks like you created the ticket after you mashed up all the changes into this PR.

The dev team will group small changes in when they deem it's appropriate of course.  Coming from an external source that needs to convince them why to trust this code can seem to complicate things unexpectedly.  It's worth time to debate over it if it could prevent holding things up later with the dev team...