$ git clone -n https://src.fedoraproject.org/rpms/rust-ryu.git /var/lib/mock/f40-build-2063591-49167/root/chroot_tmpdir/scmroot/rust-ryu
Cloning into '/var/lib/mock/f40-build-2063591-49167/root/chroot_tmpdir/scmroot/rust-ryu'...
$ git fetch origin 510621b68c523cae030d51874955cbafe73cc25c:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-ryu
 * [new ref]         510621b68c523cae030d51874955cbafe73cc25c -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 510621b Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild