in my program,when undoctl value is 61,command line prompt is diference.sometimes is "curent setting:auto=open,control=all,merge=yes,layer=yes ",while sometimes is "curent setting:auto=open,control=one,merge=yes,layer=yes".
the program is good in R17,only wrong in r18.
Is there other variable than can affect undo? or that is a bug in R18?
3ks.
