Jumplist fills its one +Jumps again, as Recent does, never opening a second

Each Jumplist opened another +Jumps below the asking pane, so a few
clicks stacked stale copies of the list. Recent's refill of its own
pane is now shared, and Jumplist uses it.

Co-Authored-By: Claude Opus 5.5 <[email protected]>

1 files changed, 17 insertions, 0 deletions

diff --git a/src/ninep/ctl.zig b/src/ninep/ctl.zig
index bc27f72b..4fab699a 100644
--- a/src/ninep/ctl.zig
+++ b/src/ninep/ctl.zig
@@ -2989,6 +2989,23 @@ test "a column takes panes until their documented minimums fill it, not until no
     }
 }
 
+test "Jumplist fills its one +Jumps again, as Recent does, never a second" {
+    const p = try withFile(testing.allocator, "x\n");
+    defer p.deinit();
+    const serial = serialOf(p);
+    var count: [2]usize = undefined;
+    for (&count) |*n| {
+        try testing.expectEqual(Status.ok, wr(p, Node.of(serial, .exec), "Jumplist\n").reply.status);
+        p.sync();
+        n.* = 0;
+        for (p.panes) |slot| if (slot) |pane| if (pane.file) |f| if (f.output) |o| {
+            n.* += @intFromBool(std.meta.eql(o.from, panes.Output.Origin{ .cmd = .Jumplist }));
+        };
+    }
+    try testing.expectEqual(@as(usize, 1), count[0]);
+    try testing.expectEqual(@as(usize, 1), count[1]);
+}
+
 test "a Jumplist entry is (closed) only while no pane has its file open" {
     const p = try withFile(testing.allocator, "x\n");
     defer p.deinit();