0.12.2dev: when producing a log link, the `get_repository_by_path` might trigger a !TracError. Catch this early, like we did in r10456 for changeset links.
0.12.2dev: when producing a log link, the `get_repository_by_path` might trigger a !TracError. Catch this early, like we did in r10456 for changeset links.

git-svn-id: 30ec3c1a2098df185a8733d0352d646269562639@10457 af82e41b-90c4-0310-8c96-b1721e28e2e2

exocad/exotrac,exocad/exotrac,exocad/exotrac,exocad/exotrac