$ git clone -n https://src.fedoraproject.org/rpms/yambar.git /var/lib/mock/f45-build-39199-732/root/chroot_tmpdir/scmroot/yambar
Cloning into '/var/lib/mock/f45-build-39199-732/root/chroot_tmpdir/scmroot/yambar'...
$ git fetch origin 1649697ef780f159e9477e850304bff18ab5ff64:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/yambar
 * [new ref]         1649697ef780f159e9477e850304bff18ab5ff64 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1649697 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild