Wiki markup hover Title not applied in Look and Feel

Issue Summary

According to Insert Confluence Wiki Markup, under Images, there's an attribute 'title' to display alternate text for an image:

Set alternate text for the image, which is displayed as a tooltip when on hover.

However, when using the correct syntax, there is no image title on hover.

Steps to Reproduce

1. Navigate to Space Settings > Look and feel > Page Layout

   https://*.atlassian.net/wiki/spaces/custompagecontent.action?key=KEY

1. Insert syntax like

   !image.gif|title=text!

   Save.

1. The pages in the space should have a tooltip on hover.

Confirmed on Legacy and New editors.

Expected Results

Image title should show as a tooltip on hover.

Actual Results

No image title on hover

Workaround

Currently, there is no known workaround for this behavior. A workaround will be added here when available