Steps to replicate the issue (include links if applicable):

• Open: https://pl.wikipedia.org/w/index.php?title=Wikipedysta:Nux/test/podprzypisy/lista&veaction=edit
• Select [1.1], copy (ctrl+C).
• Open in 2nd tab: https://pl.wikipedia.org/w/index.php?title=Wikipedysta:Nux/vedit&veaction=edit
• Paste (ctrl+V).
• Go back, select [2], copy (ctrl+C).
• Go 2nd tab, paste (ctrl+V).

What happens?:

• [1.1] is broken
• [2] is fine

Code:

<ref name="Taita2000" details="s. 42" />

<ref name="Seabrook2020">{{Cytuj |autor = Lochlainn Seabrook |tytuł = The concise book of tigers: a guide to nature's most remarkable cats |data = 2020 |isbn = 978-1-943737-84-0 |miejsce = Nashville, Tennessee |wydawca = Sea Raven Press |s = 123}}</ref>

Similar result when you just select the whole article and copy it.

What should have happened instead?:

Copying the ref should allow me to paste it to another window.

Software version (on Special:Version page; skip for WMF-hosted wikis like Wikipedia):

Other information (browser name/version, screenshots, etc.):

This is a JSON of the subref:

This is a JSON of the ref:

I'm getting JSON from a contenteditable element. You might say it's a VE debug.