Why is this source showing as if it is attached to an ID?
The Tree icon alongside suggests this source has been already attached to an ID in Family Tree - and indeed is was! However, at some time (not today) it has disappeared from G7VN-1GH. The change log shows it was attached, but subsequently a merge has been undertaken.
Clicking on the icon in FamilySearch reveals nothing and the change log does not show the source was removed from G7VN-1GH.
Is this a bug, or what's happening here?
BTW - I have purposely not attached the census source to Alfred Tungate, so the problem can be investigated as it stands.
See https://www.familysearch.org/search/record/results?q.givenName=Alfred&q.surname=Tungate&q.birthLikePlace='England, United Kingdom'&q.birthLikeDate.from=1906&q.birthLikeDate.to=1910&count=20&offset=0&treeref=G7VN-1GH&m.defaultFacets=on&m.queryRequireDefault=on&m.facetNestCollectionInCategory=on
No problem in viewing the IDs other sources on the page have been attached to.
Here's another screenshot to help illustrate the problem. From Alfred Tungate's change log it appears the source was attached, on 17 August 2020, but appears to have become detached during a merge.