Line breaks are converted incorrectly

[marph91]

Problem description: https://discourse.joplinapp.org/t/joplin-export-export-emails-from-thunderbird-to-joplin/24792/86

[marph91]

Test with the following example mail (in paragraph format):

1. text
2. enter
3. enter
4. text (paragraph)
5. shift + enter
6. shift + enter
7. text (forced line break)

The mail format is HTML, because paragraph format is used.

Result after exporting to Joplin:

 text  
<br/>

text (paragraph)  
<br/>text (forced line break)

Same result for:

• The current export (body_html) -> note is editable
• Manually setting the markup_language (body_html + markup_language=html) -> note is not editable

Options

1. Converting HTML to Markdown will be much work and some formatting will be lost.
2. ?