From 9d0f306b3e1b4a485b6fb31e90ae849d2a46c636 Mon Sep 17 00:00:00 2001
From: Julian Andres Klode <jak@debian.org>
Date: Sun, 25 May 2025 19:39:45 +0200
Subject: solver3: Allow CompareProviders3 with empty package

This can be used to compare arbitrary packages in non-dependency
contexts. It remains to be seen whether this is a meaningful
approach.
---
 apt-pkg/solver3.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

(limited to 'apt-pkg')

diff --git a/apt-pkg/solver3.cc b/apt-pkg/solver3.cc
index 749633d52..489d4081b 100644
--- a/apt-pkg/solver3.cc
+++ b/apt-pkg/solver3.cc
@@ -135,7 +135,7 @@ struct APT::Solver::CompareProviders3 /*{{{*/
       if ((A->CurrentVer == 0 || B->CurrentVer == 0) && A->CurrentVer != B->CurrentVer)
 	 return A->CurrentVer != 0;
       // Prefer packages in the same group as the target; e.g. foo:i386, foo:amd64
-      if (A->Group != B->Group)
+      if (A->Group != B->Group && not Pkg.end())
       {
 	 if (A->Group == Pkg->Group && B->Group != Pkg->Group)
 	    return true;
-- 
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