GridTable - invalid output (and/or parse)

[detoxhby]

Since v28.0 the gridtable outputs invalid format. Every version were checked and it works properly up to v27.0.

The source is parsed with Markdown.Parse(rawsource, pipeline); where pipeline is configured with:

var pipeline = new MarkdownPipelineBuilder()
    .UseAutoLinks()
    .UseEmphasisExtras()
    .UseListExtras()
    .EnableTrackTrivia() // NOTE: trackTrivia is necessary to preserve original whitespaces
    .Build();

Since this is a common use-case we would like to find the root cause of the problem. If you need any debug information, let me know!

Source (parsed)

+---------------+---------------+--------------------+
| Fruit         | Price         | Advantages         |
+===============+===============+====================+
| Bananas       | first line    | first line         |
|               | next line     | next line          |
+---------------+---------------+--------------------+
| Bananas       | first line\   | first line\        |
|               | next line     | next line          |
+---------------+---------------+--------------------+

Output with v27.0 (good)

+---------------+---------------+--------------------+
| Fruit         | Price         | Advantages         |
+===============+===============+====================+
| Bananas       | first line    | first line         |
|               | next line     | next line          |
+---------------+---------------+--------------------+
| Bananas       | first line\   | first line\        |
|               | next line     | next line          |
+---------------+---------------+--------------------+

Output with v28.0 to v33.0 (bad)

+---------------+---------------+--------------------+
| Fruit         | Price         | Advantages         |
+===============+=+====================+
| Bananas       | first line    | first line         |
|               | next line     | next line          |
+---------------+---------------+--------------------+
| Bananas       | first line\   | first line\        |
|               | next line     | next line          |
+---------------+---------------+--------------------+==============