google-diff-match-patch cannot be applied if it has more than one patch operation on property

[arbitertl]

JsonDiffPatch.Patch throws "Invalid textline" exception in case there are more than one operation in efficient string patch:

else if (patchArray.Count == 3) // Delete, Move or TextDiff
{
    if (patchArray[2].Type != JTokenType.Integer)
        throw new InvalidDataException("Invalid patch object");

    int op = patchArray[2].Value<int>();

    if (op == 0)
    {
        return null;
    }
    else if (op == 2)
    {
        var dmp = new diff_match_patch();
        List<Patch> patches = dmp.patch_fromText(patchArray[0].ToObject<string>());

        if (patches.Count != 1)
            throw new InvalidDataException("Invalid textline"); //<======= THIS IS A VALID CASE!

        string right = dmp.diff_text2(patches[0].diffs);
        return right;
    }
    else
    {
        throw new InvalidDataException("Invalid patch object");
    }
}