"Next unresolved comment" fails, tries to navigate to wrong path

[Mattadore]

"Next unresolved comment" button brings me to the wrong file in multi-repo environment, specifically it appends the absolute path relative to the workspace onto the path relative to the gerrit root, giving me:

"frameworks/base/some/file.cpp" -> "frameworks/base/frameworks/base/some/file.cpp" which does not exist and it gives an error :(

[SanderRonde]

I'm guessing this one will be fixed when #70 is fixed too, so I'll get back to it once I've implemented that.