Flaky Karma test: "ImportProjectsTable renders a loading icon whilst repos are loading"

Job #194661747 failed for e3c4af9e:

FAILED TESTS:
  ImportProjectsTable
    ✖ renders a loading icon whilst repos are loading
      Chrome
    Expected null not to be null.
        at webpack:///builds/gitlab-org/gitlab-ee/spec/javascripts/import_projects/components/import_projects_table_spec.js:60 <- spec/javascripts/test_bundle.bundle.js:1907584:67