$ git clone -n https://src.fedoraproject.org/rpms/libtree-ldd.git /var/lib/mock/f45-build-17128-496/root/chroot_tmpdir/scmroot/libtree-ldd
Cloning into '/var/lib/mock/f45-build-17128-496/root/chroot_tmpdir/scmroot/libtree-ldd'...
$ git fetch origin b5d59ead853eb9592404c2910394fcf1583b47c9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/libtree-ldd
 * [new ref]         b5d59ead853eb9592404c2910394fcf1583b47c9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at b5d59ea Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild