Screenshot
Steps to reproduce:
1.Open a page with wikitext editor
2.Insert an empty reference for example: empty reference<ref />
3.Save the page
4.Now open the page with VE
Observed Result:
It does not let you edit the empty reference you just added and shows an error "This reference is defined in a template or other generated block and for now can only be edited in source mode"
See the screenshot attached
Test Environment: http://en.wikipedia.beta.wmflabs.org/
Browser: Chrome Version 26.0.1410.65 & FF 25
OS: MAC OS X 10. 8. 5
Page:http://en.wikipedia.beta.wmflabs.org/wiki/Newpagereference?veaction=edit
Version: unspecified
Severity: normal
Attached: