Duplicates when the items in second page is less and results not updated

首先使用 page size 20、visible_threshold 5 和 keyword "Wasabee" 重现该问题。检查 paged response 在滚动期间如何更新列表和 totalItemCount；当返回的 21 或 43 条结果各出现一次，并且 UI 没有错误地显示 No results 时，即表示完成。

When Page size is set to 20, visible_threshold is 5 and search with keyword "Wasabee" the total items received is 21, but on scroll, there are duplicate items summing up to 41.

The list shows duplicates with totalItemCount as 41 (Figure 1).

Sometimes, when the results are returned, the UI still shows No results. (Figure 2).

response RepoSearchResponse(total=43, items=[Repo(id=28428729, name=awesome-android-ui, fullName=wasabeef/awesome-android-ui, description=A curated list of awesome Android UI/UX libraries, url=https://github.com/wasabeef/awesome-android-ui, stars=40710, forks=9965, language=null), Repo(id=28340997, name=recyclerview-animators, fullName=wasabeef/recyclerview-animators, description=An Android Animation library which easily add itemanimator to RecyclerView items., url=https://github.com/wasabeef/recyclerview-animators, stars=10689, forks=1940, language=Kotlin), Repo(id=29012058, name=glide-transformations, fullName=wasabeef/glide-transformations, description=An Android transformation library providing a variety of image transformations for Glide., url=https://github.com/wasabeef/glide-transformations, stars=9349, forks=1362, language=Java), Repo(id=33134213, name=richeditor-android, fullName=wasabeef/richeditor-android, description=RichEditor for Android is a beautiful Rich Text WYSIWYG Editor for Android., url=https://github.com/wasabeef/richeditor-android, stars=5525, forks=1098, language=Java), Repo(id=25873041, name=awesome-android-libraries, fullName=wasabeef/awesome-android-libraries, description=This is an alphabetical list of libraries for Android development, the majority being actively maintained., url=https://github.com/wasabeef/awesome-android-libraries, stars=5275, forks=1244, language=null), Repo(id=39571075, name=Blurry, fullName=wasabeef/Blurry, description=Blurry is an easy blur library for Android, url=https://github.com/wasabeef/Blurry, stars=4918, forks=572, language=Java), Repo(id=29178568, name=picasso-transformations, fullName=wasabeef/picasso-transformations, description=An Android transformation library providing a variety of image transformations for Picasso, url=https://github.com/wasabeef/picasso-transformations, stars=1684, forks=247, language=Java), Repo(id=42095567, name=Takt, fullName=wasabeef/Takt, description=Takt is Android library for measuring the FPS using Choreographer., url=https://github.com/wasabeef/Takt, stars=1072, forks=105, language=Java), Repo(id=34001093, name=fresco-processors, fullName=wasabeef/fresco-processors, description=An Android image processor library providing a variety of image transformations for Fresco., url=https://github.com/wasabeef/fresco-processors, stars=887, forks=132, language=Java), Repo(id=284228388, name=flutter-architecture-blueprints, fullName=wasabeef/flutter-architecture-blueprints, description=Flutter Architecture Blueprints is a project that introduces MVVM architecture and project structure approaches to developing Flutter apps., url=https://github.com/wasabeef/flutter-architecture-blueprints, stars=836, forks=80, language=Dart), Repo(id=41047753, name=awesome-android-tools, fullName=wasabeef/awesome-android-tools, description=A curated list of awesome Android Tools., url=https://github.com/wasabeef/awesome-android-tools, stars=306, forks=66, language=null), Repo(id=217567762, name=transformers, fullName=wasabeef/transformers, description=An Android transformation library providing a variety of image transformations for Coil, Glide, Picasso, and Fresco., url=https://github.com/wasabeef/transformers, stars=180, forks=8, language=Kotlin), Repo(id=125887194, name=kotlin-mvvm, fullName=wasabeef/kotlin-mvvm, description=Sample for MVVM using Kotlin, url=https://github.com/wasabeef/kotlin-mvvm, stars=173, forks=49, language=Kotlin), Repo(id=220750357, name=droid, fullName=wasabeef/droid, description=A command-line tool for checking Android OS version history written by Rust., url=https://github.com/wasabeef/droid, stars=116, forks=5, language=Rust), Repo(id=298064545, name=composable-images, fullName=wasabeef/composable-images, description=The Composable Images is a library providing Jetpack Compose wrapper for Glide, Picasso, and Coil., url=https://github.com/wasabeef/composable-images, stars=107, forks=2, language=Kotlin), Repo(id=52721057, name=android-RoundedTextureView, fullName=wasabeef/android-Roun