id	summary	reporter	owner	description	type	status	priority	milestone	component	version	resolution	keywords	cc
1947	unbalanced model - Wrong root in connection graph	Christian Schubert	Adrian Pop	"I found a bug in the connection graph handling.

If the world object, which defines Connection.root(), is used in a submodel with an outer prefix, it seems that the root is not recognized as such.

See the attached test model (CGraphBug.TopModel). From the equations it can be seen, that mass.frame_a is chosen as root, as the following equations are generated:
{{{
27 (22): if mass.useQuaternions then
  mass.phi_dd[3] = 0.0
  mass.phi_dd[2] = 0.0
  [...]
}}}
This branch is only selected if Connections.isRooted(mass.frame_a) becomes true.
"	defect	closed	critical	1.9.0	Frontend	trunk	fixed	unbalanced connection graph