fix upgrade issue w/ black part_pkg.comment, RT#3988

1 files changed, 1 insertions, 0 deletions

diff --git a/FS/FS/part_pkg.pm b/FS/FS/part_pkg.pm
index 1ea941fd6..ba80475eb 100644
--- a/FS/FS/part_pkg.pm
+++ b/FS/FS/part_pkg.pm
@@ -1281,6 +1281,7 @@ sub _upgrade_data { # class method
     $new->custom('Y');
     my $comment = $part_pkg->comment;
     $comment =~ s/^\(CUSTOM\) //;
+    $comment = '(none)' unless $comment =~ /\S/;
     $new->comment($comment);
 
     my $pkg_svc = { map { $_->svcpart => $_->quantity } $part_pkg->pkg_svc };