"Show usage in old revisions" and Claro as the Admin theme

Problem/Motivation

It looks like the spiffy new 'Show usage in old revisions' feature doesn't quite play nice with Claro as the admin theme.
After clicking the checkbox, the operation dropdown buttons no long function as expected

Steps to reproduce

• Set your admin theme to Claro
• Go to a usage tab that includes items that have an operations dropdown
• Click the Show usage in old revisions' checkbox

Proposed resolution