From 0ee0812a2bea94295318e962bb4bbd0877b035bd Mon Sep 17 00:00:00 2001
From: Nick Craig-Wood <nick@craig-wood.com>
Date: Sat, 9 Jul 2022 21:13:06 +0100
Subject: [PATCH] union: fix duplicated files when using directories with
 leading /

See: https://forum.rclone.org/t/union-backend-copying-to-all-remotes-while-it-shouldnt/31781
---
 backend/union/union.go | 1 +
 1 file changed, 1 insertion(+)

diff --git a/backend/union/union.go b/backend/union/union.go
index c93fc0649..fc78e20c3 100644
--- a/backend/union/union.go
+++ b/backend/union/union.go
@@ -834,6 +834,7 @@ func NewFs(ctx context.Context, name, root string, m configmap.Mapper) (fs.Fs, e
 		}
 	}
 
+	root = strings.Trim(root, "/")
 	upstreams := make([]*upstream.Fs, len(opt.Upstreams))
 	errs := Errors(make([]error, len(opt.Upstreams)))
 	multithread(len(opt.Upstreams), func(i int) {