$ git clone -n https://src.fedoraproject.org/rpms/rust-appendlist.git /var/lib/mock/f45-build-40083-767/root/chroot_tmpdir/scmroot/rust-appendlist
Cloning into '/var/lib/mock/f45-build-40083-767/root/chroot_tmpdir/scmroot/rust-appendlist'...
$ git fetch origin 29d21ed109e8722887b688f411f2ed11f0a4351f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-appendlist
 * [new ref]         29d21ed109e8722887b688f411f2ed11f0a4351f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 29d21ed Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild