Cancel comment button wraps strangely in side-by-side diff view

Summary

When writing a comment in the side-by-side diff view of a merge request, the cancel button wraps to the end of the next line without margin to the other buttons.

Steps to reproduce

• open merge request in side-by-side view
• write comment to an existing discussion

What is the current bug behavior?

Cancel button wraps strangely:

What is the expected correct behavior?

Button wraps nicely.