fix: Just wrap it with if statement

The last fix somehow reverted the other fix, awesome!

app/src/main/java/eu/kanade/tachiyomi/data/database/models/Manga.kt

@@ -12,11 +12,6 @@ import eu.kanade.tachiyomi.ui.reader.settings.ReadingModeType
 import eu.kanade.tachiyomi.util.manga.MangaCoverMetadata
 import uy.kohesive.injekt.Injekt
 import uy.kohesive.injekt.api.get
-import yokai.data.manga.originalArtist
-import yokai.data.manga.originalAuthor
-import yokai.data.manga.originalDescription
-import yokai.data.manga.originalGenre
-import yokai.data.manga.originalStatus
 import java.util.*
 
 // TODO: Transform  into data class
@@ -58,18 +53,26 @@ interface Manga : SManga {
             author?.contains(artist ?: "", true) == true
 
     fun copyFrom(other: SManga) {
-        author = other.originalAuthor ?: author
-
-        artist = other.originalArtist ?: artist
-
-        description = other.originalDescription ?: description
-
-        genre = other.originalGenre ?: genre
-
-        status = other.originalStatus
-
         thumbnail_url = other.thumbnail_url ?: thumbnail_url
 
+        if (other.author != null) {
+            author = if (other is Manga) other.originalAuthor else other.author
+        }
+
+        if (other.artist != null) {
+            artist = if (other is Manga) other.originalArtist else other.artist
+        }
+
+        if (other.description != null) {
+            description = if (other is Manga) other.originalDescription else other.description
+        }
+
+        if (other.genre != null) {
+            genre = if (other is Manga) other.originalGenre else other.genre
+        }
+
+        status = if (other is Manga) other.originalStatus else other.status
+
         update_strategy = other.update_strategy
 
         if (!initialized) {

app/src/main/java/yokai/data/manga/SMangaExtensions.kt

@@ -1,17 +0,0 @@
-package yokai.data.manga
-
-import eu.kanade.tachiyomi.data.database.models.MangaImpl
-import eu.kanade.tachiyomi.source.model.SManga
-
-val SManga.originalTitle: String
-    get() = (this as? MangaImpl)?.ogTitle ?: title
-val SManga.originalAuthor: String?
-    get() = (this as? MangaImpl)?.ogAuthor ?: author
-val SManga.originalArtist: String?
-    get() = (this as? MangaImpl)?.ogArtist ?: artist
-val SManga.originalDescription: String?
-    get() = (this as? MangaImpl)?.ogDesc ?: description
-val SManga.originalGenre: String?
-    get() = (this as? MangaImpl)?.ogGenre ?: genre
-val SManga.originalStatus: Int
-    get() = (this as? MangaImpl)?.ogStatus ?: status