$ git clone -n https://src.fedoraproject.org/rpms/libykneomgr.git /var/lib/mock/f45-build-17346-498/root/chroot_tmpdir/scmroot/libykneomgr
Cloning into '/var/lib/mock/f45-build-17346-498/root/chroot_tmpdir/scmroot/libykneomgr'...
$ git fetch origin 6df39cdf24bbb49a443ceeb311854c5f116150ad:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libykneomgr
 * [new ref]         6df39cdf24bbb49a443ceeb311854c5f116150ad -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6df39cd Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild