0.12.1dev: Fixed InterTrac to also work with links that generate a `Fragment` instead of an `Element` (`attachment:`, `source:`), by finding the first tag containing an `href` attribute.
0.12.1dev: Fixed InterTrac to also work with links that generate a `Fragment` instead of an `Element` (`attachment:`, `source:`), by finding the first tag containing an `href` attribute.

Discussed in #9661.


git-svn-id: 30ec3c1a2098df185a8733d0352d646269562639@10201 af82e41b-90c4-0310-8c96-b1721e28e2e2

exocad/exotrac,moreati/trac-gitsvn,exocad/exotrac,exocad/exotrac,moreati/trac-gitsvn,exocad/exotrac,moreati/trac-gitsvn,moreati/trac-gitsvn