$ git clone -n https://src.fedoraproject.org/rpms/plasma-workspace.git /var/lib/mock/f41-build-810006-146381/root/chroot_tmpdir/scmroot/plasma-workspace
Cloning into '/var/lib/mock/f41-build-810006-146381/root/chroot_tmpdir/scmroot/plasma-workspace'...
$ git fetch origin 10383d8ca7a09e86a4bdcf4756b994f464609992:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/plasma-workspace
 * [new ref]         10383d8ca7a09e86a4bdcf4756b994f464609992 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 10383d8 6.0.90