Lost content after adding footnote macro

To reproduce :

• Create a wiki page with this content :

Line 1


Line 2

• Edit the page using the wysiwyg editor and using the quick actions insert a footnote macro between Line 1 and Line 2, see screenshot
• 
• Save and view the page

Expected result : The footnote macro was added correctly without the alteration of the page content

Current result : The footnote macro was added but the content after the footnote macro was deleted, see screenshots :

Before saving (wysiwyg editor)

After saving (view mode)