It's OK to call SegSetGrey on a segment with an empty rank set so long as you are not actually setting it to be grey for any traces, so correct the AVER accordingly.
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Change: 180236
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This was the result of noticing a large number of SetSetGrey events that set the segment to the same greyness when scanning ambiguous references.
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Change: 179567
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Fixing cast from external scan state structure to a PARENT, now that we're not punning the pointer any more.
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Change: 179347
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Abolishing event formats. Each event now has its own structure.
Event parameters are now written directly into the event buffer, rather than being copied twice.
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Change: 179010
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seg.c: SegDescribe: say "buffer: NULL" if it is (rather than saying nothing).
buffer.c: BufferDescribe: now interprets buffer->mode for you.
poolamc.c: amcSegCheck: check Nailboard present onlyif SegNailed for some trace;
AMCSegDescribe: correct SEG_SUPERCLASS (so we see GCSeg fields);
say whether seg is Mobile, Boarded (there's a nailboard), or Stuck;
clearer Map symbols, and print a key for them.
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Change: 161983
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all segs: say "buffer: NULL" if it is (rather than saying nothing)
AMC: correct SEG_SUPERCLASS, so we see GCSeg fields, and say if there's a nailboard.
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Change: 161973
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Making some new files consistent with changes from that branch.
Deleting some new Global Graphics confidential files.
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Change: 30256
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This change will be integrated but ignored (-ay) to the gg-epcore/union sources, so that they retain HopeNames.
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Change: 24911
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This was achieved by partially undoing changelist 24817, including an accidental corruption of eventgen.pl.
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Change: 24877
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