How do I revert the space deletion behavior in IntelliJ IDEA 14?

I've just updated to IntelliJ IDEA 14 from version 13. One difference I've found is that when I hit the backspace key it deletes a full tab stop worth of space characters, rather than deleting a single space at a time. How do I revert the behavior to deleting a single space at a time?

How do I revert changes in Intellij?

Revert uncommitted changes You can always undo the changes you've made locally before you commit them: In the Commit tool window Alt+0 , select one or more files that you want to revert, and select Rollback from the context menu, or press Ctrl+Alt+Z .

How do I backspace in Intellij?

Delete to Word Start/End ( Ctrl+Backspace and Ctrl+Delete respectively)

How do I view local changes in Intellij?

Right-click anywhere in the editor and choose Local History | Show History from the context menu. In the dialog that opens, the left-hand pane shows a list of all saved revisions of the current file with timestamps.

Go to Settings/Editor/General/Smart Keys and uncheck Backspace Smart Indent.