fix(raw): a stale open can no longer feed the picker another device's config

src/Server/ZB.MOM.WW.OtOpcUa.AdminUI/Components/Shared/Raw/RawTagModal.razor

@@ -170,6 +170,11 @@
         }
 
         var dto = await Svc.LoadTagForEditAsync(TagId);
+        // Two opens can overlap on one modal instance (the tree's Edit command is synchronous and does
+        // not disable while this resolves), so every post-await write is discarded unless this open is
+        // still the displayed one. Last-completion-wins would point the picker at another device.
+        if (_loadedKey != key || !Visible) { return; }
+
         // RawTagEditDto is a record struct → a missing tag comes back as default (all-zero), not null.
         if (dto is not { } d || string.IsNullOrEmpty(d.TagId))
         {
@@ -192,6 +197,8 @@
         try
         {
             var merged = await Svc.LoadMergedProbeConfigAsync(d.DeviceId);
+            if (_loadedKey != key || !Visible) { return; }   // superseded open → never install its device
+
             if (merged is { } m)
             {
                 _mergedConfigJson = m.MergedConfigJson;