Possible duplicate enum values in TradeCondition in FIX 5.0

Imported from previous forum

It appears in FIX 5.0 the TradeCondition field (tag 277) contains enum values for what appears to be the same terms:

X - Crossed
AO - Crossed

AJ - Official closing price
AN - Official closing price

The GTC is looking for input on usage of these values and whether implementations will be affected if we deprecated the values “AO” and “AN”.

Please respond to this thread or directly to me.

thanks,
Lisa