$ git clone -n https://src.fedoraproject.org/rpms/lxde-icon-theme.git /var/lib/mock/f45-build-17789-504/root/chroot_tmpdir/scmroot/lxde-icon-theme
Cloning into '/var/lib/mock/f45-build-17789-504/root/chroot_tmpdir/scmroot/lxde-icon-theme'...
$ git fetch origin 43b2e59dcddbedc9e98a00acc6d6d2906f3efe42:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/lxde-icon-theme
 * [new ref]         43b2e59dcddbedc9e98a00acc6d6d2906f3efe42 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 43b2e59 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild