check if label query list is not empty efore appending label to query string

android/Omnivore/app/build.gradle

@@ -17,8 +17,8 @@ android {
         applicationId "app.omnivore.omnivore"
         minSdk 26
         targetSdk 33
-        versionCode 28
-        versionName "0.0.28"
+        versionCode 29
+        versionName "0.0.29"
 
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
         vectorDrawables {

android/Omnivore/app/src/main/java/app/omnivore/omnivore/dataService/LibrarySync.kt

@@ -28,6 +28,8 @@ suspend fun DataService.librarySearch(cursor: String?, query: String): SavedItem
   db.savedItemLabelDao().insertAll(labels)
   db.savedItemAndSavedItemLabelCrossRefDao().insertAll(crossRefs)
 
+  Log.d("sync", "found ${searchResult.items.size} items with search api. Query: $query")
+
   return SavedItemSyncResult(
     hasError = false,
     hasMoreItems = false,
@@ -93,6 +95,8 @@ suspend fun DataService.sync(since: String, cursor: String?, limit: Int = 20): S
   db.savedItemLabelDao().insertAll(labels)
   db.savedItemAndSavedItemLabelCrossRefDao().insertAll(crossRefs)
 
+  Log.d("sync", "found ${syncResult.items.size} items with sync api. Since: $since")
+
   return SavedItemSyncResult(
     hasError = false,
     hasMoreItems = syncResult.hasMoreItems,

android/Omnivore/app/src/main/java/app/omnivore/omnivore/ui/library/LibraryViewModel.kt

@@ -333,8 +333,10 @@ class LibraryViewModel @Inject constructor(
     }
 
     activeLabelsLiveData.value?.let {
-      query += " label:"
-      query += it.joinToString { label -> label.name }
+      if (it.isNotEmpty()) {
+        query += " label:"
+        query += it.joinToString { label -> label.name }
+      }
     }
 
     return query