Don't report mods with no fingerprinting as potentially tampered with (#498)

Author: Desoroxxx

src/main/java/net/minecraftforge/fml/common/FMLModContainer.java

@@ -95,6 +95,7 @@ public class FMLModContainer implements ModContainer
 
     private String annotationDependencies;
     private VersionRange minecraftAccepted;
+    private boolean hasExpectedFingerprint;
     private boolean fingerprintNotPresent;
     private Set<String> sourceFingerprints;
     private Certificate certificate;
@@ -179,6 +180,10 @@ private ILanguageAdapter getLanguageAdapter()
         return languageAdapter;
     }
 
+    public boolean hasExpectedFingerprint() {
+        return hasExpectedFingerprint;
+    }
+
     public boolean isFingerprintNotPresent() {
         return fingerprintNotPresent;
     }
@@ -574,6 +579,7 @@ public void constructMod(FMLConstructionEvent event)
 
         if (expectedFingerprint != null && !expectedFingerprint.isEmpty())
         {
+            hasExpectedFingerprint = true;
             if (!sourceFingerprints.contains(expectedFingerprint))
             {
                 Level warnLevel = source.isDirectory() ? Level.TRACE : Level.ERROR;

src/main/java/net/minecraftforge/fml/common/LoadController.java

@@ -387,7 +387,7 @@ public void printModStates(StringBuilder ret)
                 mc.getSource().getName()
             );
 
-            if (mc instanceof FMLModContainer fmc && fmc.isFingerprintNotPresent())
+            if (mc instanceof FMLModContainer fmc && fmc.hasExpectedFingerprint() && fmc.isFingerprintNotPresent())
                 potentiallyTamperedMod.add(fmc.getSource().getName());
         }