Zero width inline element moves justified text node contents

[immobilier a nantes]

I have a justified text node into which I want to insert an inline placeholder ( element if you like) whose only content is a "\[code\]‍\[/code\]" that shouldn't have any width (and chrome inspector says as much too). I have noticed that when I insert this node inline into the text node, the whole line "jiggles" as if recalculating the layout, although this should not affect it.I have also tested that if the text node I insert it into is left-aligned, this slight movement does not happen. Is this just inherent to the way the browser calculates text placement in a justified text element or could there be any workaround for this?