idle requests every 2 seconds

[don-git]

Steps to reproduce

1. I just login to phpmyadmin and wait

Expected behaviour

There should be no network traffic (or at least not much) when I'm not doing anything

Actual behaviour

after about 25 min my browser starts sending requests to the server every 2 seconds,
filling up both my web server and database logs

Server configuration

not sure what you want, but how's this?
$ cat /proc/version
Linux version 3.13.9-100.fc19.x86_64 (mockbuild@bkernel01.phx2.fedoraproject.org) (gcc version 4.8.2 20131212 (Red Hat 4.8.2-7) (GCC) ) #1 SMP Fri Apr 4 00:51:59 UTC 2014

Web server:
yum list installed shows
httpd.x86_64 2.4.10-1.fc19 @updates
httpd-devel.x86_64 2.4.10-1.fc19 @updates
httpd-tools.x86_64 2.4.10-1.fc19 @updates

Database:
mariadb.x86_64 1:5.5.36-1.fc19 @updates
mariadb-libs.x86_64 1:5.5.36-1.fc19 @updates

PHP version:
php.x86_64 5.5.10-1.fc19 @updates
php-cli.x86_64 5.5.10-1.fc19 @updates
php-common.x86_64 5.5.10-1.fc19 @updates
etc
phpMyAdmin version:
yum log shows last update:
Aug 27 06:20:48 Updated: phpMyAdmin-4.3.4-1.fc19.noarch

Client configuration

Browser:
This has now been observed in multiple browsers on multiple OS's
Operating system:

Additional remarks:
I don't think this was happening before that last yum update of phpMyAdmin, though I could be wrong about that.
I've changed /usr/share/phpMyAdmin/js/functions.js line 714 to
updateInterval = window.setInterval(UpdateIdleTime, 2000000); // 2000 ****
and this does seem to be helping.
I've not tried to figure out why the old value was 2000 or even why there is an idle timer at all,
perhaps you can tell me.