$ git clone -n https://src.fedoraproject.org/rpms/jzlib.git /var/lib/mock/f41-build-1254037-23018/root/chroot_tmpdir/scmroot/jzlib
Cloning into '/var/lib/mock/f41-build-1254037-23018/root/chroot_tmpdir/scmroot/jzlib'...
$ git fetch origin 57f752451e9a7755a4ce24e3981b902bf46203c7:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/jzlib
 * [new ref]         57f752451e9a7755a4ce24e3981b902bf46203c7 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 57f7524 Rebuilt for java-21-openjdk as system jdk