Text format lost when saving a line in an intervention

[joanahead]

Dolibarr 12.0.2
When I save a line in an intervention (htdocs/fichinter/card.php) everything is ok.
When I edit the line, change the text and save, the text's html format is lost.

It turns out that when creating the line the text from the textarea is handled like this:
GETPOST('np_desc', 'none');
while it is handled like this when the line is updated ("updateline" case):
$desc = GETPOST('np_desc');
So, I changed that last line to this:
$desc = GETPOST('np_desc', 'none');
And updating the line started to work as expected.