$ git clone -n https://src.fedoraproject.org/rpms/libyang.git /var/lib/mock/f45-build-17353-498/root/chroot_tmpdir/scmroot/libyang
Cloning into '/var/lib/mock/f45-build-17353-498/root/chroot_tmpdir/scmroot/libyang'...
$ git fetch origin 0d15004141f601390be79e1f9b315aa227fc08b4:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libyang
 * [new ref]         0d15004141f601390be79e1f9b315aa227fc08b4 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0d15004 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild