Bugfix. The bvsolver would replace a variable with an equation that contained that same variable. It did so because there was a special case that let it. I removed the special case. 
Bugfix. The bvsolver would replace a variable with an equation that contained that same variable. It did so because there was a special case that let it. I removed the special case. 

I don't understand why the special case was there, so aren't sure if this will slow down some other instances?






git-svn-id: 5069ba8be4c997ee907bf46f8ec9a2bbfb655637@815 e59a4935-1847-0410-ae03-e826735625c1

linpc/STP,linpc/STP,linpc/STP,linpc/STP,linpc/STP