id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
2363	smooth operator is removed for order 0	Willi Braun	Per Östlund	"The smooth operator is removed in the frontend, if the order is 0.
It should decide in the backend if such expressions should generate 
zero-crossing or not. 

For example
{{{
loadString(""
model A
  Real u = sin(time);
  output Real y;
equation
  y = smooth(0, if u > 0.7 then 0.7 else if u < 0.2 then 0.2 else u);
end A;
"");
getErrorString();
instantiateModel(A);
}}}
results in 
{{{
true
""""
""class A
  Real u = sin(time);
  output Real y;
equation
  y = if u > 0.7 then 0.7 else if u < 0.2 then 0.2 else u;
end A;
""
}}}
"	defect	closed	high	1.9.0	Frontend	trunk	fixed		Niklas Worschech