streamer: fix fetching the user's block list

2 jobs for validate-user-info in 7 minutes and 2 seconds (queued for 2 minutes and 29 seconds)
Name Stage Failure
failed
unit-testing Test
  * test returns activities by it's objects AP ids
  * test returns activities by it's objects AP ids (3.6ms)
* test returns the activity that created an object * test returns the activity that created an object (3.7ms)


Finished in 57.2 seconds
613 tests, 118 failures, 8 skipped

Randomized with seed 237298
ERROR: Job failed: exit code 1