partial fix for CORE-5282 (#7079)
partial fix for CORE-5282 (#7079)

* partial fix for CORE-5282

- we didn't use to error out for link-not-found, but now we do
- that kills a case we can easily recover from, and people are seeing their apps die
- fix it, but maybe there's another case to fix too

* fix compile

* no error in this case either

keybase/client,keybase/client,keybase/client,keybase/client,keybase/client,keybase/client,keybase/client,keybase/client,keybase/client,keybase/client,keybase/client,keybase/client