$ git clone -n https://src.fedoraproject.org/rpms/libetonyek.git /var/lib/mock/f45-build-16151-483/root/chroot_tmpdir/scmroot/libetonyek
Cloning into '/var/lib/mock/f45-build-16151-483/root/chroot_tmpdir/scmroot/libetonyek'...
$ git fetch origin e1139e4662ed2d95c4bcb6a2f5cfe8efdfd80d00:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libetonyek
 * [new ref]         e1139e4662ed2d95c4bcb6a2f5cfe8efdfd80d00 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at e1139e4 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild