Steps to replicate the issue (include links if applicable):

• Visit https://query.wikidata.org/
• Click somewhere outside the textbox
• Press the "e" button

What happens?:

• The Query Examples modal starts appearing, but immediately starts disappearing again

What should have happened instead?:

• It should open properly

Why it happens:

• On App.js#L400, the function that is triggered is $( 'button#open-example' ).click();. However, there are two $( 'button#open-example' ) on the page (one of them normally hidden), so both of them are clicked in quick succession, leading to the modal closing again.

Software version (on Special:Version page; skip for WMF-hosted wikis like Wikipedia):

Other information (browser name/version, screenshots, etc.):