$ git clone -n https://src.fedoraproject.org/rpms/rust-exitfailure.git /var/lib/mock/f40-build-2306425-57156/root/chroot_tmpdir/scmroot/rust-exitfailure
Cloning into '/var/lib/mock/f40-build-2306425-57156/root/chroot_tmpdir/scmroot/rust-exitfailure'...
$ git fetch origin 88c6f1d466392e4950f60ee66cce1ac63665dc08:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-exitfailure
 * [new ref]         88c6f1d466392e4950f60ee66cce1ac63665dc08 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 88c6f1d Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild