Function Block in Simulink always runs last line of an if statement, even if the statement is false. Possible block bug?

In this particular section of a code block for a chiller controller, I am telling the chiller to output power and flow numbers from previous step if the chiller is running and within the control band. However, it kept setting the "Flow_out" value to "Flow_Last", even when "Chiller_Last" = 0. Code:

Now, when I put a breakpoint here, and confirmed "Chiller_Last = 0":

I step, and it jumps directly to this line, skipping over the Chiller_PWR line, and executes it:

Now check this out, if i add "if 1 == 0", and nest this loop:

It STILL jumps directly to this last line, and executes it:

I've just added something stupid and incosequential to be the last line that gets executed no matter what the if statement says, so I found a work around. I figured, though, that I would put this here in case anyone else had this issue.

[Sai]

Hi,

I tried to reproduce the issue, but it is working fine with me. Can you please share the MATLAB release and version you are using along with the code so that I could reproduce the issue and investigate furthur?