$ git clone -n https://src.fedoraproject.org/rpms/libltc.git /var/lib/mock/f45-build-16508-487/root/chroot_tmpdir/scmroot/libltc
Cloning into '/var/lib/mock/f45-build-16508-487/root/chroot_tmpdir/scmroot/libltc'...
$ git fetch origin 4488de88ef0d1de04ced4e2c91b540b3cc47ea5f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libltc
 * [new ref]         4488de88ef0d1de04ced4e2c91b540b3cc47ea5f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4488de8 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild