Broken dependencies with openvz-release-7.0.12-5.vz7.x86_64

>Description of problem:

If you try to upgrade OpenVZ system 7.0.11-3 to 7.0.12-5 with yum update or if you try to install 7.0.12-5 from scratch on centos7 you get following yum dependency errors

--> Finished Dependency Resolution
Error: Package: libprlcommon-7.0.184.2-1.vz7.x86_64 (openvz-os)
           Requires: libjson-c.so.2(libjson-c.so.2)(64bit)
Error: Package: 1:libguestfs-tools-c-1.40.2-5.1.vz7.4.x86_64 (openvz-os)
           Requires: libjansson.so.4(libjansson.so.4)(64bit)
Error: Package: ploop-7.0.163-1.vz7.x86_64 (openvz-os)
           Requires: libjson-c.so.2(libjson-c.so.2)(64bit)
Error: Package: 1:libguestfs-1.40.2-5.1.vz7.4.x86_64 (openvz-os)
           Requires: libjansson.so.4(libjansson.so.4)(64bit)
 You could try using --skip-broken to work around the problem
** Found 1 pre-existing rpmdb problem(s), 'yum check' output follows:
kernel-3.10.0-957.21.3.el7.x86_64 is a duplicate with kernel-3.10.0-957.21.2.el7.x86_64

>How reproducible:

Just type yum update -x kernel on Openvz enabled system 7.0.11 or try to install openvz-release on centos and then type

yum install prlctl prl-disp-service vzkernel prl-disk-tool ploop

>Steps to Reproduce:
1. yum update -x kernel on already installed OpenVZ 7

 or install from scratch

2. On fresh centos 7 install openvz-release 7.0.12-5
3. yum install prlctl prl-disp-service vzkernel prl-disk-tool ploop

you get error
--> Finished Dependency Resolution
Error: Package: libprlcommon-7.0.184.2-1.vz7.x86_64 (openvz-os)
           Requires: libjson-c.so.2(libjson-c.so.2)(64bit)
Error: Package: 1:libguestfs-tools-c-1.40.2-5.1.vz7.4.x86_64 (openvz-os)
           Requires: libjansson.so.4(libjansson.so.4)(64bit)
Error: Package: ploop-7.0.163-1.vz7.x86_64 (openvz-os)
           Requires: libjson-c.so.2(libjson-c.so.2)(64bit)
Error: Package: 1:libguestfs-1.40.2-5.1.vz7.4.x86_64 (openvz-os)
           Requires: libjansson.so.4(libjansson.so.4)(64bit)
 You could try using --skip-broken to work around the problem
** Found 1 pre-existing rpmdb problem(s), 'yum check' output follows:
kernel-3.10.0-957.21.3.el7.x86_64 is a duplicate with kernel-3.10.0-957.21.2.el7.x86_64


>Actual results:
--> Finished Dependency Resolution
Error: Package: libprlcommon-7.0.184.2-1.vz7.x86_64 (openvz-os)
           Requires: libjson-c.so.2(libjson-c.so.2)(64bit)
Error: Package: 1:libguestfs-tools-c-1.40.2-5.1.vz7.4.x86_64 (openvz-os)
           Requires: libjansson.so.4(libjansson.so.4)(64bit)
Error: Package: ploop-7.0.163-1.vz7.x86_64 (openvz-os)
           Requires: libjson-c.so.2(libjson-c.so.2)(64bit)
Error: Package: 1:libguestfs-1.40.2-5.1.vz7.4.x86_64 (openvz-os)
           Requires: libjansson.so.4(libjansson.so.4)(64bit)
 You could try using --skip-broken to work around the problem
** Found 1 pre-existing rpmdb problem(s), 'yum check' output follows:
kernel-3.10.0-957.21.3.el7.x86_64 is a duplicate with kernel-3.10.0-957.21.2.el7.x86_64
>Expected results:

updated openvz release 7.0.11 to 7.0.12 and updated versions of openvz tools

>Host OS:

CentOS7 or OpenVZ7 enabled system

>Guest OS:

>Additional info (see https://openvz.org/Reporting_OpenVZ_problem):