From 4b6481664fa710649eda4d3efca880c299618f9d Mon Sep 17 00:00:00 2001
From: Jamie Cameron <jcameron@webmin.com>
Date: Sat, 1 Jun 2024 21:24:35 -0700
Subject: [PATCH] Filter out duplicate folders

---
 mailbox/mailbox-lib.pl | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/mailbox/mailbox-lib.pl b/mailbox/mailbox-lib.pl
index 8cd48b9e..e73062ed 100755
--- a/mailbox/mailbox-lib.pl
+++ b/mailbox/mailbox-lib.pl
@@ -764,6 +764,22 @@ sub list_folders
 		}
 	}
 
+# Filter out duplicate folders by inode
+my @frv;
+my %idone;
+foreach my $f (@rv) {
+	if (!$f->{'file'}) {
+		push(@frv, $f);
+		}
+	else {
+		my @st = stat($f->{'file'});
+		if (!@st || !$done{$st[0],$st[1]}++) {
+			push(@frv, $f);
+			}
+		}
+	}
+@rv = @frv;
+
 @list_folders_cache = @rv;
 return @rv;
 }