Markdown code block rendering problem on Android

Problem

When I send a message where the first characters, in the first line, in a code block, is whitespaces, like this:

```
          Some Text
          More Test
```

Then the prepended whitespaces is removed from the first line, when displayed on Android and message looks like this:

Some Text
          More Test

On Discord Desktop and iOS app, the same message is rendered the way I would expect it:

          Some Text
          More Test

A Wild Guess Appears

I tested this markdown code block regex, but the matching seems to work correctly:

• The first group (optionally) matches the language ( line 298 val language = ... )
• The second group has all the lines in the code block, including all the prepended whitespaces ( line 299 val codeBody = ... )

So my suspicion is that codeBody is trimmed (removing all prepending- and appending whitespaces, newlines etc.) later on. That would explain why it only happens on the first line of the code block.

But the only use of trim() I can find is in MarkdownRules.kt in a override fun parse() function:

val classes = matcher.group(2)?.trim()?.split(' ')

..and I have zero idea if it's related in any way.

There is also the possibility that this bug is outside of SimpleAST .. ?

Start with CodeRules.kt around the codeBody extraction at lines 298-299, then inspect MarkdownRules.kt around the parse() call at line 146 and trace the value into Android rendering. Reproduce the example on Android and confirm that leading whitespace on the first code-block line is preserved, while matching behavior on Desktop and iOS remains unchanged.