Reset .Page.Scratch on live-reload
Reset .Page.Scratch on live-reload

Fixes #4683

mdhender/hugo,mdhender/hugo,anthonyfok/hugo,fedelibre/hugo,fedelibre/hugo,gohugoio/hugo,anthonyfok/hugo,mdhender/hugo,anthonyfok/hugo,fedelibre/hugo,fedelibre/hugo,gohugoio/hugo,gohugoio/hugo,mdhender/hugo