Assume that I have a page in 'space1' with the following page content:

[Go to anchor|#anch1]

some text

h2. my title {anchor:anch1}

more text

You know, clicking "Go to anchor" will make the browser jump to "h2. mytitle".

Then, after I move this page to 'space2', the first line of that page becomes:

[Go to anchor|space2:#anch1]

thus the local-page link is broken!