fix: fix manually installed sort will include all uninstalled packages (

#5)

src/cache.rs

@@ -123,6 +123,7 @@ impl PackageSort {
 	/// Only packages that are manually installed will be included.
 	pub fn manually_installed(mut self) -> Self {
 		self.auto_installed = Sort::Reverse;
+		self.installed = Sort::Enable;
 		self
 	}
 

tests/cache.rs

@@ -22,6 +22,17 @@ mod cache {
 		}
 	}
 
+	#[test]
+	fn manually_installed() {
+		let cache = new_cache!().unwrap();
+
+		let sort = PackageSort::default().manually_installed().names();
+
+		for pkg in cache.packages(&sort) {
+			println!("{}", pkg.name())
+		}
+	}
+
 	#[test]
 	fn time_cache_iter() {
 		let cache = new_cache!().unwrap();