Appending two lists with @ fails

[isaacabraham]

This only appears to occur if the second list has multiple items separated by ;

Issue created from fantomas-online

Code

[ 2.; 4. ] @ [ 2.; 4. ]

Result

@ [ 2.; 4. ] [ 2.; 4. ]

Problem description

Please describe here the Fantomas problem you encountered.
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Extra information

• The formatted result breaks by code.
• The formatted result gives compiler warnings.
• I or my company would be willing to help fix this.

Options

Fantomas Master at 05/09/2021 13:45:10 - f10b822

Default Fantomas configuration

_{Did you know that you can ignore files when formatting from fantomas-tool or the FAKE targets by using a .fantomasignore file?}

[nojaf]

Hello Isaac, thank you for reporting this issue.
This might be related to #1188.
I would need to debug to see what is up here, might take a stab at this over the weekend.