$ git clone -n https://src.fedoraproject.org/rpms/rust-librsvg.git /var/lib/mock/f40-build-2537935-61854/root/chroot_tmpdir/scmroot/rust-librsvg
Cloning into '/var/lib/mock/f40-build-2537935-61854/root/chroot_tmpdir/scmroot/rust-librsvg'...
$ git fetch origin 408270aa049645be66278f702dc7ebd03b0bcd9d:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-librsvg
 * [new ref]         408270aa049645be66278f702dc7ebd03b0bcd9d -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 408270a Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild