Merge branch...

Merge branch '3487-newproposal-seems-to-incorrectly-ask-about-datasets-not-prevously-registered-to-icat' into 'master'

Resolve "newproposal seems to incorrectly ask about datasets not prevously registered to ICAT"

Closes #3487 (closed)

See merge request !4899 (merged)

(cherry picked from commit 35a5c143)

b9435a28 give ICAT time to ingest the last dataset