Weblate: Add component for project with Push on commit

[martinpucik]

When the project has Push on commit turned on, creation of component for this project will fail with error below. Weblate log only this message:

weblate[15786]: INFO project-name/component-name: updating repository
weblate[15786]: INFO project-name/component-name: update took 0.28 seconds:

After disabling Push on commit for project, component creation will succeed with the same configuration.

Steps to reproduce

1. Create new project
2. Check on Push on commit
3. Save Project
4. Create new component for project
   

   Actual behaviour

Component creation fails with error:

Failed to update repository: fatal: bad revision 'origin/master..' (128)

Server configuration

Weblate version: 2.6

[nijel]

I've hit this today as well, already fixed in 6390eb9f09269f8154f13d2bc365fcfcd3ae3d5e.