Description
Links within the same page don't work if the page title has ampersands.

Steps to replicate it:

• Create a new page with a title that has ampersands (e.g. Test & Test)
• Enter some content
• Create an anchor somewhere in the page (e.g. testanchor)
• Create a link to the anchor created in above step

The link built by Confluence has the following format:
http://[host name]/pages/viewpage.action?pageId=[page id]#Test&Test-testanchor
which is not correctly resolved, and therefore clicking on the link doesn't navigate to the anchor.

If I manually modify the link to:
http://[host name]/pages/viewpage.action?pageId=[page id]#Test&Test-testanchor
or:
http://[host name]/pages/viewpage.action?pageId=[page id]#Test%26Test-testanchor
The link works correctly.