Pressing Esc key doesn't close chat right away

In Minecraft Windows 10 Edition pressing the Esc key on my keyboard doesn't close the chat. I have to press Esc twice to close it. The chat should just close when I press Esc once. This creates a problem when chatting, then something sneaks up on you and closing chat isn't so responsive.

Steps to reproduce

• Type T to open chat.
• Press Esc because you want the chat to close.
  Since chat didn't close the first time, you have to press Esc again!