Returning empty tibbles if email is not authenticated with no clear warning/error

[jscamac]

Describe the bug galah doesn't provide adequate warning when attempting to download occurrence records with an email address that hasn't been authenticated by ALA.

galah version ‘1.5.0’

To Reproduce

galah_config(email = "fake@gmail.com")
galah_call() %>%
  galah_identify("Grevillea australis") %>%
  atlas_occurrences()

Returns

This query will return 2459 records
Checking queue
Current queue size: 
Running query on selected atlas
  |============================================================================================================================================| 100%
Calling the API failed for `atlas_occurrences`
# A tibble: 0 × 0

Expected behaviour What it should do is either provide a more explicit error saying the email address is not valid, or if it the email is optional, return the tibble of 2459 occurrence records. Otherwise there is the possibility that a user will assume there are no records for the species (despite the message suggesting the API failed).

[mjwestgate]

Fixed as of version 2.0