$ git clone -n https://src.fedoraproject.org/rpms/plasma-workspace-x11.git /var/lib/mock/f41-build-835232-158435/root/chroot_tmpdir/scmroot/plasma-workspace-x11
Cloning into '/var/lib/mock/f41-build-835232-158435/root/chroot_tmpdir/scmroot/plasma-workspace-x11'...
$ git fetch origin 6cdfc6f9e8dc4f7f1c5064ebbd8297dc6685343f:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/plasma-workspace-x11
 * [new ref]         6cdfc6f9e8dc4f7f1c5064ebbd8297dc6685343f -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 6cdfc6f Update to 6.1.3.