$ git clone -n https://src.fedoraproject.org/rpms/kf6-kholidays.git /var/lib/mock/f40-build-2215577-52437/root/chroot_tmpdir/scmroot/kf6-kholidays
Cloning into '/var/lib/mock/f40-build-2215577-52437/root/chroot_tmpdir/scmroot/kf6-kholidays'...
$ git fetch origin 1d0000f337e86e738898293128d3d64d0eca73fb:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kf6-kholidays
 * [new ref]         1d0000f337e86e738898293128d3d64d0eca73fb -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 1d0000f add doc package with QCH API Docs