From aa87b3690081261379c6b93488cdd3f3f7b1ef31 Mon Sep 17 00:00:00 2001
From: Brecht Van Lommel <brecht@blender.org>
Date: Wed, 18 Jan 2023 20:54:57 +0100
Subject: [PATCH] Fix 500 error viewing pull request when fork has pull
 requests disabled (#22512)

Swallow error just like in #20839, for the case where there is no
protected branch.

Fixes #20826 for me, though I can't tell if this now covers all cases.
---
 services/pull/update.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/services/pull/update.go b/services/pull/update.go
index 9e29f63c7c..ede89bcdff 100644
--- a/services/pull/update.go
+++ b/services/pull/update.go
@@ -118,6 +118,9 @@ func IsUserAllowedToUpdate(ctx context.Context, pull *issues_model.PullRequest,
 		}
 		prUnit, err := pr.BaseRepo.GetUnit(ctx, unit.TypePullRequests)
 		if err != nil {
+			if repo_model.IsErrUnitTypeNotExist(err) {
+				return false, false, nil
+			}
 			log.Error("pr.BaseRepo.GetUnit(unit.TypePullRequests): %v", err)
 			return false, false, err
 		}