After Back/Forward navigation, tab shows page URL instead of page title

[gulkily]

Did you search for similar issues before submitting this one?
Yes

Describe the issue you encountered:
When navigating using the Back button, the tab's text changes to the page's URL instead of the title. The Forward button is also affected by this issue.

Expected behavior:
Tab should display page title

• Platform (Win7, 8, 10? macOS? Linux distro?): macOS
• Brave Version: 0.11.5
• Steps to reproduce:
  1. Open a page with a title and at least one link. The link should not open in a new window.
  2. Ensure that the page has a title by looking at the tab text.
  3. Click the link to go to another page.
  4. Go back to the original page by pressing the Back button

Expected: The page's title is displayed in the tab text in both steps 1 and 4

Actual: In step 4, the page title changes to the page URL

• Screenshot if needed:

#2798