Fix Clipboard Block On Collection Version Delete
Fix Clipboard Block On Collection Version Delete

Fix Clipboard Block On Collection Version Delete

- Check `btCoreScrapbookDisplay` to make sure block is not pasted from
  clipboad elsewhere on site

matt9mg/concrete5,matt9mg/concrete5,avdevs/concrete5,TimDix/concrete5,MichaelMaar/concrete5,MichaelMaar/concrete5,MichaelMaar/concrete5,matt9mg/concrete5,avdevs/concrete5,TimDix/concrete5,avdevs/concrete5,TimDix/concrete5