Explicitly clear list, just in case

CHANGELIST.md

@@ -28,6 +28,7 @@
 - Fix tabs in Games and Videos boxes
 - Make fully and partially matching IDs more apparent
 - Add write offset as read-only field
+- Explicitly clear list, just in case
 
 ### 2.3 (2022-02-05)
 - Start overhauling Redump information pulling, again

MPF.Library/InfoTool.cs

@@ -1642,6 +1642,11 @@ namespace MPF.Library
                         else
                             fullyMatchedIDs = fullyMatchedIDs.Intersect(foundIds).ToList();
                     }
+                    // If no tracks were found, remove all fully matched IDs found so far
+                    else
+                    {
+                        fullyMatchedIDs = new List<int>();
+                    }
                 }
 
                 // Make sure we only have unique IDs