From 0b9c338f581fc562c94e8f1122b6d5b9bfc715e3 Mon Sep 17 00:00:00 2001
From: Andrew Isherwood <andrew.isherwood@ptfs-europe.com>
Date: Wed, 5 Jan 2022 10:00:10 -0300
Subject: [PATCH] Bug 28932: Fix duplicate next_action & prev_action

This patch fixes the duplicate buttons issue.
To test:
1. Apply the regression tests patch
2. Run:
   $ kshell
  k$ prove t/db_dependent/Illrequests.t
=> FAIL: Tests fail
3. Apply this patch
4. Repeat 2
=> SUCCESS: Tests pass

Signed-off-by: Tomas Cohen Arazi <tomascohen@theke.io>
Signed-off-by: Fridolin Somers <fridolin.somers@biblibre.com>

Signed-off-by: Kyle M Hall <kyle@bywatersolutions.com>
(cherry picked from commit 692804a49a59208b6726f48523bfb82e73671ddc)

Signed-off-by: Andrew Fuerste-Henry <andrew@bywatersolutions.com>
---
 Koha/Illrequest.pm | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/Koha/Illrequest.pm b/Koha/Illrequest.pm
index 01d421f63d..fa2fcbc944 100644
--- a/Koha/Illrequest.pm
+++ b/Koha/Illrequest.pm
@@ -572,7 +572,8 @@ sub _status_graph_union {
             if ( grep { $prev_action eq $_ } @core_status_ids ) {
                 my @next_actions =
                      @{$status_graph->{$prev_action}->{next_actions}};
-                push @next_actions, $backend_status_key;
+                push @next_actions, $backend_status_key
+                    if (!grep(/^$backend_status_key$/, @next_actions));
                 $status_graph->{$prev_action}->{next_actions}
                     = \@next_actions;
             }
@@ -582,7 +583,8 @@ sub _status_graph_union {
             if ( grep { $next_action eq $_ } @core_status_ids ) {
                 my @prev_actions =
                      @{$status_graph->{$next_action}->{prev_actions}};
-                push @prev_actions, $backend_status_key;
+                push @prev_actions, $backend_status_key
+                    if (!grep(/^$backend_status_key$/, @prev_actions));
                 $status_graph->{$next_action}->{prev_actions}
                     = \@prev_actions;
             }
-- 
2.20.1