Misleading UI when copying/renaming a page with modified title

Steps to reproduce:

• Create a page (non-terminal) called, for example, "Proces number one"
• Edit this page in wysiwyg mode and correct its title to "Process number one". Save.
• From the page administration menu, copy this page. At this point, the UI is the one from screenshot 1_CopyScreen.png: the title of the copied page is "Process number one", the corrected title. Same for the location of the copied page
• Modify the title of the copied page to "Process number two". The location will change too, as in 2_CopyScreen.png
• Click on copy

Actual result:

• When the copy is done, the confirmation screen displays the result page as "Process number one". See 3_ResultScreen.png
• Clicking on the name of the page takes to a page whose title is "Process number one" (although the URL is correctly to page "Process number two"). See 4_PageScreen.png

Expected result:

• The confirmation screen should display title "Process number two"
• When clicking on the name of the target page, it should take to a page whose title is "Process number two"

The same happens when renaming a page, in the same conditions.
Note that if step 2 is skipped (the title of the page is not different from the name of the page), this issue does not occur.