From b5e9a949bc1ef8fc7b1bb6ae23dcde3eb903a88e Mon Sep 17 00:00:00 2001
From: Jon Evans <jon@craftyjon.com>
Date: Thu, 28 Jan 2021 19:51:29 -0500
Subject: [PATCH] Selection: skip sloppiness pruning if invalid

Fixes https://gitlab.com/kicad/code/kicad/-/issues/7320
---
 pcbnew/tools/pcb_selection_tool.cpp | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/pcbnew/tools/pcb_selection_tool.cpp b/pcbnew/tools/pcb_selection_tool.cpp
index 1d40e9bf35..30719aac84 100644
--- a/pcbnew/tools/pcb_selection_tool.cpp
+++ b/pcbnew/tools/pcb_selection_tool.cpp
@@ -2374,10 +2374,13 @@ void PCB_SELECTION_TOOL::GuessSelectionCandidates( GENERAL_COLLECTOR& aCollector
 
     // Prune sloppier items
 
-    for( std::pair<BOARD_ITEM*, int> pair : itemsBySloppiness )
+    if( minSlop < INT_MAX )
     {
-        if( pair.second > minSlop + pixel )
-            aCollector.Transfer( pair.first );
+        for( std::pair<BOARD_ITEM*, int> pair : itemsBySloppiness )
+        {
+            if( pair.second > minSlop + pixel )
+                aCollector.Transfer( pair.first );
+        }
     }
 
     // If the user clicked on a small item within a much larger one then it's pretty clear