Run the example and click the button, the click count won't update, the next click will. Clicking the text box and then the button will cause a delay before the click count is updated, sometimes it won't update at all. It looks like the behavior is that the counter doesn't update until you click (again) or move the mouse, so if you click multiple times without moving the mouse it stays one click behind.
Typing a space in the text box won't show up (caret won't move), when a non-space is typed, both the space and the character show up.
Windows 10 64-bit, Rust stable version 1.31.1 (MSVC), SDL version 2.09
