fix ensureMissingRepos issue when has same chart name

Signed-off-by: yxxhero <aiopsclub@163.com>

pkg/downloader/manager.go

@@ -509,6 +509,10 @@ func (m *Manager) ensureMissingRepos(repoNames map[string]string, deps []*chart.
 			continue
 		}
 
+		if _, ok := repoNames[dd.Repository]; ok {
+			continue
+		}
+
 		// When the repoName for a dependency is known we can skip ensuring
 		if _, ok := repoNames[dd.Name]; ok {
 			continue