log on stripped extensions

types/block.go

@@ -1105,11 +1105,16 @@ func (ec *ExtendedCommit) EnsureExtensions() error {
 // StripExtensions removes all VoteExtension data from an ExtendedCommit. This
 // is useful when dealing with an ExendedCommit but vote extension data is
 // expected to be absent.
-func (ec *ExtendedCommit) StripExtensions() {
+func (ec *ExtendedCommit) StripExtensions() bool {
+	stripped := false
 	for idx := range ec.ExtendedSignatures {
+		if len(ec.ExtendedSignatures[idx].Extension) > 0 || len(ec.ExtendedSignatures[idx].ExtensionSignature) > 0 {
+			stripped = true
+		}
 		ec.ExtendedSignatures[idx].Extension = nil
 		ec.ExtendedSignatures[idx].ExtensionSignature = nil
 	}
+	return stripped
 }
 
 // ToCommit converts an ExtendedCommit to a Commit by removing all vote

types/vote.go

@@ -112,11 +112,14 @@ func (vote *Vote) CommitSig() CommitSig {
 	}
 }
 
-// StripExtensions removes any extension data from the vote. Useful if the
+// StripExtension removes any extension data from the vote. Useful if the
 // chain has not enabled vote extensions.
-func (vote *Vote) StripExtensions() {
+// Returns true if extension data was present before stripping and false otherwise.
+func (vote *Vote) StripExtension() bool {
+	stripped := len(vote.Extension) > 0 || len(vote.ExtensionSignature) > 0
 	vote.Extension = nil
 	vote.ExtensionSignature = nil
+	return stripped
 }
 
 // ExtendedCommitSig attempts to construct an ExtendedCommitSig from this vote.