Yum package provider: ensure => latest fails in case of broken update notices

# puppet apply -e "package{'puppet-agent': ensure => 'latest'}"

Notice: Compiled catalog for localhost in environment production in 1.00 seconds

Error: Could not get latest version: undefined method `[]' for nil:NilClass

Error: /Stage[main]/Main/Package[puppet-agent]/ensure: change from 1.3.0-1.el7 to latest failed: Could not get latest version: undefined method `[]' for nil:NilClass

Notice: Applied catalog in 7.66 seconds

# yum check-update

Loaded plugins: product-id, subscription-manager, versionlock

Red_Hat_Enterprise_Linux-Release_Notes-7-en-US.noarch                                                7-2.el7                                                                          rhel-7-server-rpms         

alsa-tools-firmware.x86_64                                                                           1.0.28-2.el7                                                                     rhel-7-server-rpms         

[snip]

Update notice RHBA-2014:0722 (from rhel-7-server-rpms) is broken, or a bad duplicate, skipping.

You should report this problem to the owner of the rhel-7-server-rpms repository.