Tables nested in list items have empty lines

[Witiko]

When a table is at the top of the document, it is parsed correctly:

$ texlua markdown-cli.lua pipeTables=true <<< '
| aaa | bbb | ccc |
|-----|-----|-----|
| aaa | bbb | ccc |
| aaa | bbb | ccc |
'

\markdownRendererDocumentBegin
\markdownRendererTable{}{3}{3}{ddd}{{aaa}{bbb}{ccc}}{{aaa}{bbb}{ccc}}{{aaa}{bbb}{ccc}}
\markdownRendererDocumentEnd

However, when a table is nested in a list, empty lines are added to the table:

$ texlua markdown-cli.lua pipeTables=true <<< '
- aaa:

    | aaa | bbb | ccc |
    |-----|-----|-----|
    | aaa | bbb | ccc |
    | aaa | bbb | ccc |
'

\markdownRendererDocumentBegin
\markdownRendererUlBegin
\markdownRendererUlItem aaa:
\markdownRendererInterblockSeparator
\markdownRendererTable{}{5}{3}{ddd}{{aaa}{bbb}{ccc}}{{}{}{}}{{aaa}{bbb}{ccc}}{{}{}{}}{{aaa}{bbb}{ccc}}
\markdownRendererUlItemEnd 
\markdownRendererUlEnd
\markdownRendererDocumentEnd