Summary: Ref T13030. See PHI254. This behavior could be cleaner than I've made it, but it fixes the "this is totally broken" issue, replacing a fatal/exception with an informative (just not terribly useful) page.
Test Plan:
- Added a submodule to a repository.
- In Diffusion, clicked some other file next to the submodule, then edited the URI to the submodule path instead.
- Before patch: fatal.
- After patch: relatively useful message about this being a submodule.
Note that it's normally hard to hit this URI directly. In the browse view, submodules are marked up as directories and linked to a separate submodule resolution flow.
{F5321524}
Reviewers: amckinley
Reviewed By: amckinley
Maniphest Tasks: T13030
Differential Revision: https://secure.phabricator.com/D18831
7cbbe2ccf7