$ git clone -n https://src.fedoraproject.org/rpms/rust-nom4.git /var/lib/mock/f38-build-side-43-rust-devel-1411133-31429/root/chroot_tmpdir/scmroot/rust-nom4
Cloning into '/var/lib/mock/f38-build-side-43-rust-devel-1411133-31429/root/chroot_tmpdir/scmroot/rust-nom4'...
$ git fetch origin 03e13c85a0322cb6e322038d93fad861415e1f0a:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/rust-nom4
 * [new ref]         03e13c85a0322cb6e322038d93fad861415e1f0a -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 03e13c8 Rebuilt for https://fedoraproject.org/wiki/Fedora_38_Mass_Rebuild