Trac error: branch shows entire file deleted

[Paul Masson]

When I look at the branch for ticket #15134 it show the entire file hyperbolic.py deleted. For Travis it shows just the changes from the existing commits as expected. He also says the error occurs sometimes.

Any idea what causes this? It's a bit disconcerting to see the contents of an entire file ready for deletion.

[Dima Pasechnik]

it's a bug in the branch "viewer". If you look at
https://git.sagemath.org/sage.git/patch/?id=71a67e9045f7aea00468da83e283f8ec91e7b65e
it is just fine.

Yes, I think that this is not the 1st time it pops up.