Pydev interactive console - output does not appear when using "if"

Question

If I type

if 1: print("yes")

in an interactive console in Pydev, there is no output. This happens whether I choose "Console for currently active editor" or "Python console". Why is this, and how can I fix it?

If I type the same line in IDLE, or in Python within the Windows Command Prompt, I get the output yes as expected (after pressing Enter twice). If I type just print("yes") in the interactive console in Pydev, I also get the output yes as expected.

I am using Python 3.6, Eclipse 4.4.1, Pydev 3.8.0.201409251235, and Windows 10.

Answer 1

I updated to Eclipse 4.7.1a and Pydev 6.2.0.201711281614, and now the interactive console works as expected.

I would still be interested in knowing why the earlier versions had this problem.