$ git clone -n https://src.fedoraproject.org/rpms/fedorawaves-kdm-theme.git /var/lib/mock/f45-build-8894-396/root/chroot_tmpdir/scmroot/fedorawaves-kdm-theme
Cloning into '/var/lib/mock/f45-build-8894-396/root/chroot_tmpdir/scmroot/fedorawaves-kdm-theme'...
$ git fetch origin 362d427bb64e2a01d6e2c6be7dc599db4bfbcbcf:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/fedorawaves-kdm-theme
 * [new ref]         362d427bb64e2a01d6e2c6be7dc599db4bfbcbcf -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 362d427 Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild