Fix isLoading live data

app/src/main/java/org/koitharu/kotatsu/base/ui/util/CountedBooleanLiveData.kt

@@ -13,8 +13,8 @@ class CountedBooleanLiveData : MutableLiveData<Boolean>(false) {
 			counter--
 		}
 		val newValue = counter > 0
-		if (newValue != value) {
-			super.setValue(value)
+		if (newValue != this.value) {
+			super.setValue(newValue)
 		}
 	}
 }

app/src/main/java/org/koitharu/kotatsu/remotelist/ui/RemoteListViewModel.kt

@@ -137,6 +137,9 @@ class RemoteListViewModel(
 					e.printStackTrace()
 				}
 				listError.value = e
+				if (!mangaList.value.isNullOrEmpty()) {
+					onError.postCall(e)
+				}
 			}
 		}
 	}