Steps to reproduce:

• A Wikipedian made this edit and ran into an edit conflict.
• The Wikipedian did not use the edit conflict interface and opened the page in a new tab instead.
• The page in the new tab already contained the edit that was supposed to be conflicting.
• Expected behavior: The page should not have included that edit.

reported on https://de.wikipedia.org/wiki/Wikipedia_Diskussion:Technische_W%C3%BCnsche/Topw%C3%BCnsche/Bearbeitungskonflikte#BK_wird_angezeigt_%E2%80%93_der_geschriebene_Text_ist_aber_bei_Kontrolle_ohne_weiteres_Zutun_schon_publiziert_...