Feature request: Make Zoom hot key (z) work only when held down

In my Drawing Tools preferences, I have “Keep tool active” set to “never”. Nevertheless, when I press ‘z’ to activate the Zoom tool, my next click will zoom, unless I activate a different tool.

This “sticky” behaviour makes sense for drawing tools, but not, in my opinion, for tools like Zoom (z) or Hand (space). I’d like to be able to turn this off.