id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
1617	Matching fails after Dummy Derivative Method in some case	Willi Braun	Willi Braun	"For the following example we need a restart of the matching, due to incorrect implementation of matching algorithm.
The problem results in a lack of equations of the strong components and then missing of equations while the simulation.
{{{
model test
  Real x(start=1),y(start=0);
  Real xd,yd;
  Real Foo;
equation
  x*x+y*y=1;
  der(y)=yd+sin(time);
  der(x)=xd+sin(time);
  der(xd) = -x*Foo;
  der(yd) = -Foo*y;
end test;
}}}"	defect	closed	high		Backend		fixed		Willi Braun Jens Frenkel Willi Braun