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Stefan Hildebrandt
7a3a262c87
In the unread ('unread') and starred ('starred') cross views, marking a mail
read or removing its star flips the very keyword the view filters on
(notKeyword:$seen / hasKeyword:$flagged). The push-triggered refresh re-runs
that filtered query, so the mail was absent from the fresh page and the merge
dropped it - the row vanished from under the cursor on the user's own action.
Keep such rows in place: only their status + the counters update (both already
applied by markAsRead/toggleStar/batchMarkAsRead), they stay visible until the
view is re-opened. A new retainedInViewIds set records the ids the user just
read/unstarred while in these views; refreshCurrentMailbox re-inserts those rows
at their prior position via mergeRetainedRows. The set is scoped to the two
keyword cross views, cleared on navigation (fetchEmails/fetchUnifiedEmails/
fetchCrossView/exitUnifiedView), and dropped per-id when the action is reversed
(mark unread / re-star). totalEmails counts the retained rows so hasMore stays
correct.
Genuinely removed rows (deleted/moved -> absent from the local list) are not
resurrected, and a change the user did NOT make in this view (e.g. read on
another device, retain set empty) still drops as before.
Tests: stores/__tests__/email-store-retained-in-view.test.ts - read keeps the
row (unread view), unstar keeps the row (starred view), reversing/ navigation
clear retention, external read still drops, 'all' view does not retain. The
row-keeping cases fail without the fix.