feature: use MERGE_MSG as default commit message while merging (#88)

Author: love-linger

src/ViewModels/WorkingCopy.cs

@@ -274,6 +274,14 @@ public bool SetData(List<Models.Change> changes)
  SelectedStagedTreeNode = null;
  SetDetail(null, false);
  }
+
+ // Try to load merge message from MERGE_MSG
+ if (string.IsNullOrEmpty(_commitMessage))
+ {
+ var mergeMsgFile = Path.Combine(_repo.GitDir, "MERGE_MSG");
+ if (File.Exists(mergeMsgFile))
+ CommitMessage = File.ReadAllText(mergeMsgFile);
+ }
  });
 
  return hasConflict;