$ git clone -n https://src.fedoraproject.org/rpms/decentxml.git /var/lib/mock/f41-build-2628682-25583/root/chroot_tmpdir/scmroot/decentxml
Cloning into '/var/lib/mock/f41-build-2628682-25583/root/chroot_tmpdir/scmroot/decentxml'...
$ git fetch origin 6c73cd2c5a3a2c3e0bea5a9cec1cfe650ac55433:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/decentxml
 * [new ref]         6c73cd2c5a3a2c3e0bea5a9cec1cfe650ac55433 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6c73cd2 convert license to SPDX