$ git clone -n https://src.fedoraproject.org/rpms/jzlib.git /var/lib/mock/f40-build-2485062-61642/root/chroot_tmpdir/scmroot/jzlib
Cloning into '/var/lib/mock/f40-build-2485062-61642/root/chroot_tmpdir/scmroot/jzlib'...
$ git fetch origin 33e6f2ab6b981abbeacbafcc87495cc9b744d8a9:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/jzlib
 * [new ref]         33e6f2ab6b981abbeacbafcc87495cc9b744d8a9 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 33e6f2a bump of release for for java-21-openjdk as system jdk