autographer/move.js — comment on commit 84d1d4ebc9b49f017d13d6195cef6803872182c6
File:  line 0
By adam-a:

Not quite. The purpose was to allow you to remove a transition property (in my case `transition-duration`) completely, which requires adding the vendor prefixes. Although 9a053fdc245f4a8cc479a8e6e7d447ae887592b0 is perhaps a better approach, I think it makes sense to clear the `transition-duration` there along with the other transition properties.