When I'm drawing a path and undo a crappy point photoshop assumes that the next time I click, I want to start a new line instead of continuing the old line. I have to click on one of the points again to tell photoshop that I want to continue the line, which is kind of a pain. Photoshop used to do that automatically. Anyway I can get that feature back?
I did a quick test on my windows 8.1 system. backspace removes a single point but deselects the path, requiring you to select the path first to continue. Where as ctrl-z (undo just removes the last point keeping the path selected. Ctrl-alt-z will step back through the points removing each one individually keeping the path selected. It did not make difference if I used paths or shapes, both worked the same.
Funny I never needed to undo a point before, I just redid the point later on.