fix: drain first-task completion during Today refresh (Closes #1156)

frontend/today-sync.js

@@ -303,7 +303,10 @@ function createTodaySync({ storage, getLogin, fetchJson, onRemoteIds, onRemotePl
       let operations = pending();
       let plan;
       let hadConflict = false;
-      if (!operations.length) plan = await fetchJson('api/v1/today');
+      if (!operations.length) {
+        plan = await fetchJson('api/v1/today');
+        operations = pending();
+      }
       while (operations.length) {
         if (key() !== ownerKey) return false;
         const batch = operations.slice(0, 50);