$ git clone -n https://src.fedoraproject.org/rpms/rust-esaxx-rs.git /var/lib/mock/f45-build-41581-784/root/chroot_tmpdir/scmroot/rust-esaxx-rs
Cloning into '/var/lib/mock/f45-build-41581-784/root/chroot_tmpdir/scmroot/rust-esaxx-rs'...
$ git fetch origin af45ccf9d574a317b5f2e1d7a101df4e6be28fbf:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-esaxx-rs
 * [new ref]         af45ccf9d574a317b5f2e1d7a101df4e6be28fbf -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at af45ccf Rebuilt for https://fedoraproject.org/wiki/Fedora_45_Mass_Rebuild