In addition to adding <p></p> on every new line, tinyMCE is adding <p></p> after every <p></p> on every product save: see screenshot

I tried adding:

force_p_newlines: false,  
force_br_newlines: true,

In these 2 files:

admin/themes/new-theme/js/components/tinymce-editor.js

and

js/admin/tinymce.inc.js

But nothing changes. Any suggestions?