Tables are not displayed correctly in Markdown files and this gets synchronized back to Clients if the file is edited

[claell]

I assume that this is the standard text editor app that is used by default when editing text filed (like Markdown) in nextcloud; the one described here under a different name: https://nextcloud.com/blog/nextcloud-introduces-collaborative-rich-text-editor/.

Steps to reproduce

1. Upload a Markdown document containing a table

Expected behaviour

Either render the table correctly or render the text generating the table correctly

Actual behaviour

Line breaks for the text rendering the table are not rendered online (probably because the table is considered text and the Markdown syntax ignores single line breaks when rendering normal text)

Server configuration

Operating system:

Web server:

Database:

PHP version:

Nextcloud version: (see Nextcloud admin page)

Where did you install Nextcloud from:

List of activated apps:

If you have access to your command line run e.g.:
sudo -u www-data php occ app:list
from within your Nextcloud installation folder

Nextcloud configuration:

If you have access to your command line run e.g.:
sudo -u www-data php occ config:list system
from within your Nextcloud installation folder

or

Insert your config.php content here
Make sure to remove all sensitive content such as passwords. (e.g. database password, passwordsalt, secret, smtp password, …)

Client configuration

Browser:

Operating system:

Logs

Nextcloud log (data/owncloud.log)

Insert your Nextcloud log here

Browser log

Insert your browser log here, this could for example include:

a) The javascript console log
b) The network log
c) ...

[claell]

Unfortunately this problem is even worse. When editing the file online with the editor, the line breaks are removed from the file.

Setup:

• Create a Markdown file with tables on your Desktop (Windows if that matters) and synchronize it to the Cloud.
• View the file online (one can now observe that line breaks for the table are not displayed correctly)
• Edit the file online (doesn't matter where, I changed something many lines above the table)
• The file gets synchronized back to the Client
• Now the file on the client also lacks line breaks for the table

Example:

| Heading | Test | Heading | Test |
| --- | :--- | --- | --- |
| Content | | | |
| Content | | | |
| Content | Test | Content | Test |

gets turned into

| Heading | Test | Heading | Test | | --- | :--- | --- | --- | | Content | | | | | Content | | | | | Content | Test | Content | Test |

[claell]

Duplicate of #772

[claell]

Apparently a duplicate. I had filed this for the wrong text editor app at first and only now found the correct one that already has an issue for this.

[claell]

Duplicate of #593