SCommand StrFilterCmd::duplicate() missed these two lines:
filterCmd->leftColType = leftColType;
filterCmd->rightColType = rightColType;
which exist in the parent's FilterCommand::duplicate().
Rewriting the code to avoid duplication by using more inherited
methods/constructors. This reduces the probability of similar bugs
in the future.
column width
RTSCommand was modified to use a fabric that produces CC class based on column width
NB this patch doesn't affect PseudoCC that also leverages ColumnCommand
