There are a few ways to fix this, from easiest to hardest: 1) merge aa6b918 into epel7, build, and update; 2) backport this upstream patch for epel7, build, and update: https://github.com/libyui/libyui-qt/commit/647d77ad4c94e50b01ab8ed69ce68a712725f762 3) rebase the entire libyui stack to match f23.
libyui-qt-2.46.13-8.el7 has been submitted as an update to Fedora EPEL 7. https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2016-7193218d04
libyui-qt-2.46.13-8.el7 has been pushed to the Fedora EPEL 7 testing repository. If problems still persist, please make note of it in this bug report. See https://fedoraproject.org/wiki/QA:Updates_Testing for instructions on how to install test updates. You can provide feedback for this update here: https://bodhi.fedoraproject.org/updates/FEDORA-EPEL-2016-7193218d04
libyui-qt-2.46.13-8.el7 has been pushed to the Fedora EPEL 7 stable repository. If problems still persist, please make note of it in this bug report.