$ git clone -n https://src.fedoraproject.org/rpms/rust-rbspy-testdata.git /var/lib/mock/f40-build-2101529-50507/root/chroot_tmpdir/scmroot/rust-rbspy-testdata
Cloning into '/var/lib/mock/f40-build-2101529-50507/root/chroot_tmpdir/scmroot/rust-rbspy-testdata'...
$ git fetch origin a9c3a2d6405d3e1625314308bf07021e27282148:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-rbspy-testdata
 * [new ref]         a9c3a2d6405d3e1625314308bf07021e27282148 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at a9c3a2d Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild