$ git clone -n https://src.fedoraproject.org/rpms/z88dk.git /var/lib/mock/f42-build-879446-182018/root/chroot_tmpdir/scmroot/z88dk
Cloning into '/var/lib/mock/f42-build-879446-182018/root/chroot_tmpdir/scmroot/z88dk'...
$ git fetch origin c63a0baaa978741322532922eddf380d096e2c27:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/z88dk
 * [new ref]         c63a0baaa978741322532922eddf380d096e2c27 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at c63a0ba Rebuilt for https://fedoraproject.org/wiki/Fedora_42_Mass_Rebuild