$ git clone -n https://src.fedoraproject.org/rpms/rust-filesize.git /var/lib/mock/f40-build-2680643-67947/root/chroot_tmpdir/scmroot/rust-filesize
Cloning into '/var/lib/mock/f40-build-2680643-67947/root/chroot_tmpdir/scmroot/rust-filesize'...
$ git fetch origin 2aa51045d6b93b988cc43e5561f8939463bbaa63:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-filesize
 * [new ref]         2aa51045d6b93b988cc43e5561f8939463bbaa63 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 2aa5104 Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild