Hovering over the Share button doesn't show the correct translation to any language set

Summary

It is missing the translation of a sentence when you hover over the Share button in a Confluence page or blog post.

Steps to Reproduce

1. Go to your profile settings
2. Click on the Edit button
3. Change the language to any language and save the changes
4. Go to any Confluence page/blog post
5. Hover your cursor over the Share button option, on the top of the page/blog post

Expected Results

• The translation of the "Share this page with others (sou k)" sentence is shown

Actual Results

• The tooltip is showing in English instead
• Example the issue in French
  

Notes

When having the i18ntranslate=on, we can see that it has the following keys:

• share.button.tooltip2.page
• share.button.tooltip2

Which have been correctly set in the French JAR file:
confluence-language-pack-fr_FR-6.15.0.rc1-20190311231818

Workaround

N/A