Using the Visual Editor, I added a photo to the Princes Bridge article with this diff:
https://en.wikipedia.org/w/index.php?title=Princes_Bridge&type=revision&diff=831196465&oldid=828238615
In a subsequent VE edit, I repositioned the photo in the article to appear in a more chronological sequence. I used cut Ctrl-X and past Ctrl-V to do this with this diff:
https://en.wikipedia.org/w/index.php?title=Princes_Bridge&diff=next&oldid=831196465
As I wanted to put this photo also into the Joseph Brady (engineer) article and knowing I had it in my copy/paste buffer, I opened that article, positioned my cursor into the desired paragraph and pasted (Ctrl-V) with this diff:
https://en.wikipedia.org/w/index.php?title=Joseph_Brady_%28engineer%29&type=revision&diff=831196773&oldid=831195816
which disconnected the capation from the photo. On inspection of the source code, I could also see the return of what I thought was an old bug with the addition of a link field.
[[File:Princes_Bridge,_Melbourne,_1851_by_Joseph_Brady.jpg|link=https://en.wikipedia.org/wiki/File:Princes_Bridge,_Melbourne,_1851_by_Joseph_Brady.jpg|thumb]]
Painting of the 1851 Princes Bridge by [[Joseph Brady (engineer)|Joseph Brady]]