Using "plus" in sidebar "Windows" view with "Switch saved windows" option checked will lead to destruction of opened tabs in the window.
Steps to reproduce:
- Open multiple tabs in one window (no difference which webpages)
- Open sidebar in "Windows" view and check that "Switch saved windows in-place" option (in lower right corner of sidebar) is enabled/checked.
- Click the "plus" in lower left corner of sidebar to create new saved window.
Clicking on "plus" causes all tabs in window to irrecoverably disappear and this "new saved window" will be ampty. Disappeared tabs cannot be restored from "recently closed" menu and only way to get back to them is from history.
This would not happen when "Switch saved windows in-place" option is unchecked - clicking "plus" will create new emptywindow but your initial window with tabs will stay opened in background.
It would ne normal for tabs to not disappear in this irrecoverable way. It would normal to expect that "new saved window" would have all all the tabs of the window (where sidebar was initially opened) in it.
Orion 0.99.137-beta (WebKit 623.1.8.0.0), Tahoe 26.1 RC (25B77)
Tahoe (26)