$ git clone -n https://src.fedoraproject.org/rpms/dnf5.git /var/lib/mock/f42-build-865139-172845/root/chroot_tmpdir/scmroot/dnf5
Cloning into '/var/lib/mock/f42-build-865139-172845/root/chroot_tmpdir/scmroot/dnf5'...
$ git fetch origin 89de4ed03d7d6c71e54b590c49fe105fcede21d1:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/dnf5
 * [new ref]         89de4ed03d7d6c71e54b590c49fe105fcede21d1 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 89de4ed Fix end-of-lines in messages sent by email emitter of automatic plugin