$ git clone -n https://src.fedoraproject.org/rpms/plasma-disks.git /var/lib/mock/f41-build-858000-168286/root/chroot_tmpdir/scmroot/plasma-disks
Cloning into '/var/lib/mock/f41-build-858000-168286/root/chroot_tmpdir/scmroot/plasma-disks'...
$ git fetch origin 0ce82f2e56611c42b49810debb4be1adc3163a71:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/plasma-disks
 * [new ref]         0ce82f2e56611c42b49810debb4be1adc3163a71 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 0ce82f2 6.2.1