sidebar: dedupe PR rows by normalized URL identity

Sources/Workspace.swift

@@ -722,8 +722,26 @@ enum SidebarBranchOrdering {
             }
         }
 
+        func normalizedReviewURLKey(for url: URL) -> String {
+            guard var components = URLComponents(url: url, resolvingAgainstBaseURL: false) else {
+                return url.absoluteString
+            }
+
+            // Treat URL variants that differ only by query/fragment as the same review item.
+            components.query = nil
+            components.fragment = nil
+            let scheme = components.scheme?.lowercased() ?? ""
+            let host = components.host?.lowercased() ?? ""
+            let port = components.port.map { ":\($0)" } ?? ""
+            var path = components.path
+            if path.hasSuffix("/"), path.count > 1 {
+                path.removeLast()
+            }
+            return "\(scheme)://\(host)\(port)\(path)"
+        }
+
         func reviewKey(for state: SidebarPullRequestState) -> String {
-            "\(state.label.lowercased())#\(state.number)"
+            "\(state.label.lowercased())#\(state.number)|\(normalizedReviewURLKey(for: state.url))"
         }
 
         var orderedKeys: [String] = []

cmuxTests/CmuxWebViewKeyEquivalentTests.swift

@@ -3776,6 +3776,38 @@ final class SidebarBranchOrderingTests: XCTestCase {
         )
     }
 
+    func testOrderedUniquePullRequestsTreatsSameNumberAndLabelDifferentUrlsAsDistinct() {
+        let first = UUID()
+        let second = UUID()
+
+        let pullRequests = SidebarBranchOrdering.orderedUniquePullRequests(
+            orderedPanelIds: [first, second],
+            panelPullRequests: [
+                first: pullRequestState(
+                    number: 42,
+                    label: "PR",
+                    url: "https://github.com/manaflow-ai/cmux/pull/42",
+                    status: .open
+                ),
+                second: pullRequestState(
+                    number: 42,
+                    label: "PR",
+                    url: "https://github.com/manaflow-ai/other-repo/pull/42",
+                    status: .open
+                )
+            ],
+            fallbackPullRequest: nil
+        )
+
+        XCTAssertEqual(
+            pullRequests.map(\.url.absoluteString),
+            [
+                "https://github.com/manaflow-ai/cmux/pull/42",
+                "https://github.com/manaflow-ai/other-repo/pull/42"
+            ]
+        )
+    }
+
     func testOrderedUniquePullRequestsUsesFallbackWhenNoPanelPullRequestsExist() {
         let fallback = pullRequestState(
             number: 11,