$ git clone -n https://src.fedoraproject.org/rpms/kdiamond.git /var/lib/mock/f39-build-1676948-40954/root/chroot_tmpdir/scmroot/kdiamond
Cloning into '/var/lib/mock/f39-build-1676948-40954/root/chroot_tmpdir/scmroot/kdiamond'...
$ git fetch origin 4ce7fb5310a7d3a122340ed708478e3956da62bc:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/kdiamond
 * [new ref]         4ce7fb5310a7d3a122340ed708478e3956da62bc -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 4ce7fb5 23.08.2