ofFbo: Window Resize Events effecting FBO drawing in second window…

Sorry just cross posting on the forums as well as here incase it's a bug that needs attention.

I'm having a problem with resize window events on the main window effecting the drawing of an FBO in a second window. This only seems to happen when I enable GLVersion(3,2) and higher. I've made a super striped back example the shows the problem.

Seems weird that events on the main window are spilling through to effect children windows. Is this a bug or am I not setting something up properly?

To see what I mean, compile the example and try resizing the main window to see the second window FBO draw weirdly. -> https://github.com/JoshuaBatty/MultiWindowBug

Im on OS X 10.10.5
opengl info:
version=4.2.0 NVIDIA
vendor=NVIDIA Corporation
renderer=GeForce GT 750m

When I run the app I get the following. Basically the second window should draw the ellipse in the middle of the screen.

However, the second window FBO is stretching its drawing according to the resolution of the main window, even though I calling the draw as: second_window_fbo.draw(0,0,secondWindow->getWidth(),secondWindow->getHeight());

When I cout the window sizes it prints the correct values:
Main winodow width = 920 -- Main window height = 480 -- Second window widht = 480 -- Second window height = 640

Interestingly, if I resize the main window to the same size as my second window then everything draws as originally anticipated.

Start by compiling the stripped-down example at https://github.com/JoshuaBatty/MultiWindowBug on OS X with GLVersion(3,2) or higher, then resize the main window while observing the second window's FBO. Compare the reported window sizes and the second-window draw call; done means the second window keeps drawing its ellipse at its own dimensions instead of stretching with the main window.