BUG #15131: "ERROR: function pg_current_xlog_location() does notexist" in PGAdmin III

The following bug has been logged on the website:

Bug reference:      15131
Logged by:          Thomas Kinney
Email address:      tkinney.usmc@gmail.com
PostgreSQL version: 10.3
Operating system:   Centos 7 Server
Description:

Upgrade from 9.6.8 to 10.3 and used the 10.3 version of pg_dumpall.
Everything went smoothly, no errors.  Launched PGAdmin III and when I open
my database I get the following error:

ERROR: function pg_current_xlog_location() does not exist.

I can clear the error messages and the database seems to function
normally.

If a patch exists, I cannot find it.