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* fix(issues): return to the source list after deleting an issue Deleting an issue from its detail page always pushed the workspace Issues list, so opening an issue from My Issues (or a project list, search, a pin, an agent panel) and deleting it dropped the user's navigation context — GH #5995. Go back instead. `useBackOrReplace` steps back when the platform reports in-app history and replaces with a fallback path when there is none, so a shared link opened cold or a new tab never steps off the app. Web answers via the Navigation API, falling back to counting its own pushes; desktop reads the active tab's virtual history. `replace`, not `push`: the deleted issue's URL must not stay in history for the back button to land on a 404. The not-found "Back to Issues" button loses the same context, so it moves to the same helper and its label becomes a plain "Back". Co-authored-by: multica-agent <github@multica.ai> * fix(web): track history position, not push count, for canGoBack The Navigation API fallback only ever counted pushes, so `pushes > 0` did not mean the current entry still had an in-app page behind it. Cold-open an issue, click Issues, press the browser's Back button, then delete: the tracker still claimed history and `back()` would step off Multica — the exact case the fallback exists to prevent. Count depth instead: a push adds one, any traversal takes one away (clamped at zero). Reaching the document's first entry requires traversing back at least as many times as we pushed, so a positive depth can never be claimed while sitting on it. A browser Forward is now conservative — it reports no history where a step back would have been fine — which costs a fallback navigation rather than an exit. Also corrects the useBackOrReplace contract comment: stepping back leaves the dead URL in forward history, so the guarantee is that it never lands on the back stack, not that it leaves history entirely. Co-authored-by: multica-agent <github@multica.ai> * fix(web): answer canGoBack from the browser alone, never from push counts Review found the counter still lied, one level deeper: it counted `router.push` calls, and a call is not a committed history entry. Next drops a push to `replaceState` when the canonical URL is unchanged (app-router.js, the `pendingPush && href !== canonicalUrl` branch), so clicking a self-link — the breadcrumb on an issue detail page, a pin to the issue you are on — incremented depth with no entry behind it, and a delete from there could still step off the app. Fixing the count needs per-entry markers, which means depending on both React effect ordering (our provider's effect runs before app-router's history commit) and Next's own preserveCustomHistoryState behaviour. Two rounds of review have now found holes in hand-rolled history tracking; a third layer of it is not the way to buy this guarantee. So stop deriving. `canGoBack` is the Navigation API's answer or `false`. Browsers without it take the fallback path, which is exactly what they did before any of this existed — nobody regresses, and the "wrong true walks the user out of the app" failure is now unreachable by construction. Drops the tracker, the popstate wiring and the push wrapper: the `multica:navigate` bridge returns to its original shape. Co-authored-by: multica-agent <github@multica.ai> --------- Co-authored-by: Bohan-J <bohan@devv.ai> Co-authored-by: multica-agent <github@multica.ai>