1 files changed, 52 insertions, 2 deletions
diff --git a/bug/op_set_metadata.go b/bug/op_set_metadata.go
index e18f1cb6..57b78667 100644
--- a/bug/op_set_metadata.go
+++ b/bug/op_set_metadata.go
@@ -1,6 +1,8 @@
 package bug
 
 import (
+	"encoding/json"
+
 	"github.com/MichaelMure/git-bug/identity"
 	"github.com/MichaelMure/git-bug/util/git"
 )
@@ -9,8 +11,8 @@ var _ Operation = &SetMetadataOperation{}
 
 type SetMetadataOperation struct {
 	OpBase
-	Target      git.Hash          `json:"target"`
-	NewMetadata map[string]string `json:"new_metadata"`
+	Target      git.Hash
+	NewMetadata map[string]string
 }
 
 func (op *SetMetadataOperation) base() *OpBase {
@@ -56,6 +58,54 @@ func (op *SetMetadataOperation) Validate() error {
 	return nil
 }
 
+// Workaround to avoid the inner OpBase.MarshalJSON overriding the outer op
+// MarshalJSON
+func (op *SetMetadataOperation) MarshalJSON() ([]byte, error) {
+	base, err := json.Marshal(op.OpBase)
+	if err != nil {
+		return nil, err
+	}
+
+	// revert back to a flat map to be able to add our own fields
+	var data map[string]interface{}
+	if err := json.Unmarshal(base, &data); err != nil {
+		return nil, err
+	}
+
+	data["target"] = op.Target
+	data["new_metadata"] = op.NewMetadata
+
+	return json.Marshal(data)
+}
+
+// Workaround to avoid the inner OpBase.MarshalJSON overriding the outer op
+// MarshalJSON
+func (op *SetMetadataOperation) UnmarshalJSON(data []byte) error {
+	// Unmarshal OpBase and the op separately
+
+	base := OpBase{}
+	err := json.Unmarshal(data, &base)
+	if err != nil {
+		return err
+	}
+
+	aux := struct {
+		Target      git.Hash          `json:"target"`
+		NewMetadata map[string]string `json:"new_metadata"`
+	}{}
+
+	err = json.Unmarshal(data, &aux)
+	if err != nil {
+		return err
+	}
+
+	op.OpBase = base
+	op.Target = aux.Target
+	op.NewMetadata = aux.NewMetadata
+
+	return nil
+}
+
 // Sign post method for gqlgen
 func (op *SetMetadataOperation) IsAuthored() {}