Multi-select NN filed when enter is pressed

Hi,

I’m having a problem within a form, when I have a NN relationship field (type multi-select), when I press enter key in the form (even in a text filed in the same form) it select all the multi select field options …
anybody have the same issue ? or can reproduce it ? is a big issue because sometime you press enter, and do not notice , and when you save the form the multi slect NN field gets all the values selected!

Tks in advance
Francisco