The page tells two feeds' items with one guid apart (#361)

Rows, the selection, the items turned past and the player were matched
by guid alone, so in All Subscriptions two feeds giving a post the same
guid (a blog's RSS and Atom) were one item to the page: clicking the
second selected and marked the first, and the second never read. They
are matched by feed and guid now (entryKey, the key readWrites already
used); data-guid stays on the row for the tests, data-key is matched.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

web/CHANGELOG.md

@@ -11,6 +11,10 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ## [Unreleased]
 
+### Fixed
+
+- Two items from different feeds that share an id, as a blog's RSS and Atom feeds' do, are told apart: in All Subscriptions the second can be opened and marked read, where the first was marked whichever was clicked (#361).
+
 ### Changed
 
 - An item's title and text take four fifths of the reading pane's width, no longer running to its far edge (#360).