🐛 Fix root-level books in collection libraries (#493)

core/src/filesystem/scanner/library_scan_job.rs

@@ -397,10 +397,16 @@ impl JobExt for LibraryScanJob {
 				// If the library is not collection-priority, each subdirectory is its own series.
 				// Therefore, we only scan one level deep when walking a series whose library is not
 				// collection-priority to avoid scanning duplicates which are part of other series
-				let max_depth = self
+				let mut max_depth = self
 					.options
 					.as_ref()
 					.and_then(|o| (!o.is_collection_based()).then_some(1));
+				if path_buf == PathBuf::from(&self.path) {
+					// The exception is when the series "is" the libray (i.e. the root of the library contains
+					// books). This is kind of an anti-pattern wrt collection-priority, but it needs to be handled
+					// in order to avoid the scanner re-scanning the entire library...
+					max_depth = Some(1);
+				}
 
 				let Some(Ok(ignore_rules)) =
 					self.options.as_ref().map(|o| o.ignore_rules.build())

core/src/filesystem/scanner/series_scan_job.rs

@@ -96,6 +96,7 @@ impl JobExt for SeriesScanJob {
 		ctx: &WorkerCtx,
 	) -> Result<WorkingState<Self::Output, Self::Task>, JobError> {
 		let mut output = Self::Output::default();
+		let path_buf = PathBuf::from(self.path.clone());
 		let library = ctx
 			.db
 			.library()
@@ -117,7 +118,13 @@ impl JobExt for SeriesScanJob {
 		// If the library is not collection-priority, each subdirectory is its own series.
 		// Therefore, we only scan one level deep when walking a series whose library is not
 		// collection-priority to avoid scanning duplicates which are part of other series
-		let max_depth = (!library_config.is_collection_based()).then_some(1);
+		let mut max_depth = (!library_config.is_collection_based()).then_some(1);
+		if path_buf == PathBuf::from(&library.path) {
+			// The exception is when the series "is" the libray (i.e. the root of the library contains
+			// books). This is kind of an anti-pattern wrt collection-priority, but it needs to be handled
+			// in order to avoid the scanner re-scanning the entire library...
+			max_depth = Some(1);
+		}
 
 		self.options = Some(library_config);