DiffItem.cpp: Fix infinite loop when deleting the first item and rescanning

diff --git a/Src/DiffItem.cpp b/Src/DiffItem.cpp
index f8e844e..ffee582 100644 (file)
--- a/Src/DiffItem.cpp
+++ b/Src/DiffItem.cpp
@@ -157,7 +157,7 @@ void DIFFITEM::DelinkFromSiblings()
                        parent->children = Flink;
                }
        }
-       if (Blink != nullptr)
+       if (Blink != nullptr && Blink->Flink != nullptr)
                Blink->Flink = Flink;
        if (Flink != nullptr)
                Flink->Blink = Blink;