private static @NotNull @NlsContexts.DialogTitle String unmergedFilesErrorTitle(@NotNull String operationName) {
    return GitBundle.message("branch.ui.handler.can.not.operation.name.because.of.unmerged.files", operationName);
  }
private static @NotNull @NlsContexts.DialogTitle String unmergedFilesErrorTitle(@NotNull String operationName)