Can't list branches of torvalds/linux repo on Github

Created by: shadyabhi

• Sourcegraph version:
• Platform information:

Steps to reproduce:

1. Visit: https://sourcegraph.com/github.com/torvalds/linux/-/tags
2. Observe error

Expected behavior:

No error, shuold list branches.

Actual behavior:

Branches are not searchable and get error Strconv.ParseInt: parsing "": invalid syntax.