Yum installation of Satellite 6.2 on tomcat gives a warning 'group tomcat does not exist'

Issue

When attempting to install a new Satellite 6.2 server, the following message occurs during the installation of tomcat:

  Installing : katello-common-3.0.0-21.el7sat.noarch                    304/350
  Installing : libecap-1.0.0-1.el7.x86_64                               305/350
  Installing : syslinux-4.05-13.el7.x86_64                              306/350
  Installing : ipxe-bootimgs-20170123-1.git4e85b27.el7_4.1.noarch       307/350
  Installing : tfm-rubygem-foreman_bootdisk-6.1.0.4-1.el7sat.noarch     308/350
  Installing : tomcat-el-2.2-api-7.0.76-2.el7.noarch                    309/350
  Installing : tomcat-lib-7.0.76-2.el7.noarch                           310/350
  Installing : tomcat-7.0.76-2.el7.noarch                               311/350
warning: group tomcat does not exist - using root
warning: group tomcat does not exist - using root
warning: group tomcat does not exist - using root