$ git clone -n https://src.fedoraproject.org/rpms/plasma-disks.git /var/lib/mock/f40-build-2202882-51901/root/chroot_tmpdir/scmroot/plasma-disks
Cloning into '/var/lib/mock/f40-build-2202882-51901/root/chroot_tmpdir/scmroot/plasma-disks'...
$ git fetch origin 33d976df7cea9892d89c1af69fdd6ebab235cf82:KOJI_FETCH_HEAD
From https://src.fedoraproject.org/rpms/plasma-disks
 * [new ref]         33d976df7cea9892d89c1af69fdd6ebab235cf82 -> KOJI_FETCH_HEAD
$ git reset --hard KOJI_FETCH_HEAD
HEAD is now at 33d976d 5.91.0