$ git clone -n https://src.fedoraproject.org/rpms/rust-uu_cat.git /var/lib/mock/f40-build-781154-131430/root/chroot_tmpdir/scmroot/rust-uu_cat
Cloning into '/var/lib/mock/f40-build-781154-131430/root/chroot_tmpdir/scmroot/rust-uu_cat'...
$ git fetch origin 93eb3db5c6f3cbbe86970e596e7a8c441a885280:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-uu_cat
 * [new ref]         93eb3db5c6f3cbbe86970e596e7a8c441a885280 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 93eb3db Rebuilt for https://fedoraproject.org/wiki/Fedora_40_Mass_Rebuild