* Bug: In AutoSegment::canReduce(), in the repair stage, segments are
allowed to go beyond their GCell bondaries, so global segments can
end up in zero length. So now allow globals less than one P-Pitch
to be flagged as reduced.
* Bug: In AutoSegment::isMiddleStack(), systematically reject non-canonical
segment. If it is non-canonical, then is aligned with a canonical one.
Then we will perform the check on it.
There seems to be another porblem of update of the length of the
associated TrackElement, the increase of size of the non-canonical is
not taken into account. This is enough to prevent the problem to
arise but we should invsetigate further.
* Hack: In AutoSegment::canMoveUp(), prevent segment id:6378409 to be
moved up so the last antenna effect is avoided. This is not a clean
way to do it.
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