Cant export issues on project

[marcelosousa]

I've tried to export the issues from https://github.com/google/gvisor but it seems to be failing.

Steps to reproduce:

1. Installed and started the GUI using the instructions in the README.
2. Added the information for https://github.com/google/gvisor
   
3. Export.

Behaviour:

• After about 10 seconds of spinning wheel, the spinning wheel disappears. The selected file to save the export doesn't exist (I'm assuming it wasn't saved).

[zkoppert]

related to #36

[jasonmacgowan]

Thanks for reporting! I can reproduce.

Adding is:pr to the search query is currently unsupported, but we definitely should give some feedback in the tool.