Remove usages of Observable.empty() (#3479)

src/en/existentialcomics/build.gradle

@@ -5,7 +5,7 @@ ext {
     appName = 'Tachiyomi: Existential Comics'
     pkgNameSuffix = 'en.existentialcomics'
     extClass = '.ExistentialComics'
-    extVersionCode = 3
+    extVersionCode = 4
     libVersion = '1.2'
 }
 

src/en/existentialcomics/src/eu/kanade/tachiyomi/extension/en/existentialcomics/ExistentialComics.kt

@@ -36,7 +36,7 @@ class ExistentialComics : ParsedHttpSource() {
         return Observable.just(MangasPage(arrayListOf(manga), false))
     }
 
-    override fun fetchSearchManga(page: Int, query: String, filters: FilterList): Observable<MangasPage> = Observable.empty()
+    override fun fetchSearchManga(page: Int, query: String, filters: FilterList): Observable<MangasPage> = Observable.just(MangasPage(emptyList(), false))
 
     override fun fetchMangaDetails(manga: SManga) = Observable.just(manga)
 

src/en/gunnerkriggcourt/build.gradle

@@ -5,7 +5,7 @@ ext {
     appName = 'Tachiyomi: Gunnerkrigg Court'
     pkgNameSuffix = 'en.gunnerkriggcourt'
     extClass = '.GunnerkriggCourt'
-    extVersionCode = 1
+    extVersionCode = 2
     libVersion = '1.2'
 }
 

src/en/gunnerkriggcourt/src/eu/kanade/tachiyomi/extension/en/gunnerkriggcourt/GunnerkriggCourt.kt

@@ -40,7 +40,7 @@ class GunnerkriggCourt : ParsedHttpSource() {
         return Observable.just(MangasPage(arrayListOf(manga).reversed(), false))
     }
 
-    override fun fetchSearchManga(page: Int, query: String, filters: FilterList): Observable<MangasPage> = Observable.empty()
+    override fun fetchSearchManga(page: Int, query: String, filters: FilterList): Observable<MangasPage> = Observable.just(MangasPage(emptyList(), false))
 
     override fun fetchMangaDetails(manga: SManga): Observable<SManga> {
         return Observable.just(manga)

src/en/questionablecontent/build.gradle

@@ -5,7 +5,7 @@ ext {
     appName = 'Tachiyomi: Questionable Content'
     pkgNameSuffix = 'en.questionablecontent'
     extClass = '.QuestionableContent'
-    extVersionCode = 4
+    extVersionCode = 5
     libVersion = '1.2'
 }
 

src/en/questionablecontent/src/eu/kanade/tachiyomi/extension/en/questionablecontent/QuestionableContent.kt

@@ -36,7 +36,7 @@ class QuestionableContent : ParsedHttpSource() {
         return Observable.just(MangasPage(arrayListOf(manga), false))
     }
 
-    override fun fetchSearchManga(page: Int, query: String, filters: FilterList): Observable<MangasPage> = Observable.empty()
+    override fun fetchSearchManga(page: Int, query: String, filters: FilterList): Observable<MangasPage> = Observable.just(MangasPage(emptyList(), false))
 
     override fun fetchMangaDetails(manga: SManga) = Observable.just(manga)
 

src/en/xkcd/build.gradle

@@ -5,7 +5,7 @@ ext {
     appName = 'Tachiyomi: xkcd'
     pkgNameSuffix = 'en.xkcd'
     extClass = '.Xkcd'
-    extVersionCode = 7
+    extVersionCode = 8
     libVersion = '1.2'
 }
 

src/en/xkcd/src/eu/kanade/tachiyomi/extension/en/xkcd/Xkcd.kt

@@ -37,7 +37,7 @@ class Xkcd : ParsedHttpSource() {
         return Observable.just(MangasPage(arrayListOf(manga), false))
     }
 
-    override fun fetchSearchManga(page: Int, query: String, filters: FilterList): Observable<MangasPage> = Observable.empty()
+    override fun fetchSearchManga(page: Int, query: String, filters: FilterList): Observable<MangasPage> = Observable.just(MangasPage(emptyList(), false))
 
     override fun fetchMangaDetails(manga: SManga): Observable<SManga> = fetchPopularManga(1)
         .map { it.mangas.first().apply { initialized = true } }