$ git clone -n https://src.fedoraproject.org/rpms/jzlib.git /var/lib/mock/f39-build-1567879-37601/root/chroot_tmpdir/scmroot/jzlib
Cloning into '/var/lib/mock/f39-build-1567879-37601/root/chroot_tmpdir/scmroot/jzlib'...
$ git fetch origin 5df1308bd3fcbda999a5a4b9a2c2e59f08765a1e:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/jzlib
 * [new ref]         5df1308bd3fcbda999a5a4b9a2c2e59f08765a1e -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 5df1308 Rebuilt for https://fedoraproject.org/wiki/Fedora_39_Mass_Rebuild