Stop related_assets from duplicating on every clone

self.assets = page.assets implicitly cleared the collection before
recreating it. Replacing it with an explicit loop, to preserve the
headline flag across clones, dropped that clearing -- every
clone_attributes_from call since has been appending related_assets
rather than replacing them. Restored with an explicit delete_all
before the copy.

update_assets (the sort_images reorder action) had the same gap for
headline specifically; it now carries the previous headline forward
when that asset is still present in the new list.

0 files changed, 0 insertions, 0 deletions