Preformatted text is rendered incorrectly

[taikedz]

Describe the bug

When a markdown codeblock is used like

```yaml
data:
  moredata:
```

it simply renders as

data:

moredata:

when viewed in the Nextcloud Notes browser view.

Environment

• Firefox 67.0.4
• Ubuntu 18.04

To Reproduce

Steps to reproduce the behavior:

• Create a new note
• Start a code block with "```", and add some preformatted text
• See that it does not render a preformatted block, but a series of preformatted paragraph-lines
• Inspect the raw file data to see that it is potentially correct

Expected behavior

The same type of rendering as here on Github (example above)

Screenshots

Server (please complete the following information):

• Notes app version: 3.0.1 (just updated)
• Nextcloud version: 16.0.3
• OS: Ubuntu 16.04 server
• Web server: Apache2
• PHP version: PHP7
• Database: MySQL

Client (please complete the following information):

• Browser (incl. version): Firefox 64
• OS: Ubuntu 18.04

Log files

(none relevant?)

[korelstar]

I can reproduce this issue. It looks that this was introduced with #321 and not fixed by #340.

Currently, I can't see a fix for this issue other than reverting #321 and #340. Then, we will lose the nice looking code block style, but with realizing #331, we will have it back again. So I think, this is fine for now.

[taikedz]

Looking forward to getting this in. Thanks! 🎉