After cygwin 3.2 update windows terminal input is sometimes broken

[Tomas Tumelionis]

Been using windows terminal preview (this is still actual with current
latest version 1.9) and after cygwin 3.2 update windows terminal input is
broken after:
* splitting pane
* moving terminal window to other window
* sleeping pc
This means that if I open the terminal and split pane, I can not enter text
into the previous pane forever.